Best Optical Illusions to Test Your Mind and Eyes

Bright Side

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Transcript

00:00:00Believe it or not, this optical illusion will let you know if you should drive in the rain

00:00:13or not.

00:00:14Take a look at this image.

00:00:16Try to find the sequence of numbers hidden inside it.

00:00:19OK, go!

00:00:22Did you say 3,452,839?

00:00:32If you did, then your contrast sensitivity is on point!

00:00:36The so-called contrast sensitivity helps you to clearly see the outline of small objects.

00:00:42If this feature is not well developed in your system, then you shouldn't really drive in

00:00:46the rain or even when it's foggy out.

00:00:53Take a look at this image.

00:00:55What animal is not depicted here?

00:00:57A rabbit, a duck, or a snail?

00:01:07The picture definitely doesn't depict a snail!

00:01:10Way to go if you got that right!

00:01:17How many different scenes can you spot in this image?

00:01:20Three?

00:01:21Four?

00:01:22Take a guess!

00:01:29It's only two!

00:01:30You should be able to see the chalice in the first scene.

00:01:33And then, when you change your focus, you should be able to spot the profile of two

00:01:37faces with a white background.

00:01:42OK, take a look at both images.

00:01:47Can you tell if the circle on the right is larger than the circle on the left?

00:01:58Believe it or not, these two circles are actually the exact same size!

00:02:04This illusion is known as the Ebbinghaus illusion, and it was discovered by a German

00:02:08physiologist in the early 1900s.

00:02:12One of the possible explanations for why our brain glitches when looking at this image

00:02:16is due to the size of the external circles.

00:02:20Since the circles on the right are much bigger, they make the one from the right look smaller

00:02:25than the one on the left.

00:02:31Can you stare at this parrot's eye for 15 seconds?

00:02:35Just keep staring at it, I'll tell you when you can close your eyes.

00:02:38You're about to witness a great example of an afterimage!

00:02:43Three, two, one, and close your eyes!

00:02:52Can you see a red parrot?

00:03:06Isn't it amazing that even though this parrot is black and white, you have the illusion

00:03:10of seeing the color red?

00:03:12Again, this is just your brain trying to guess the color of something!

00:03:20Behind all of these little black dots, there's an image.

00:03:24Are you part of the 1% of people that can see it?

00:03:34It's a minion!

00:03:35Congrats if you spotted that!

00:03:40Here's another one in this style.

00:03:42Can you see what's hidden here?

00:03:51It's a ninja turtle!

00:03:52Honestly, did you need to be a bit of a ninja to see that one?

00:03:59And what about this one?

00:04:08My my, it's Homer Simpson!

00:04:13So now there's something hidden behind black stripes.

00:04:16How's your x-ray vision working?

00:04:25You got it if you said it's one of the dragons from How to Train Your Dragon.

00:04:30That's cute!

00:04:35Can you tell which circle in this image is the darkest one?

00:04:41Uh oh, that was totally a trick question!

00:04:48All the circles are exactly the same color.

00:04:50This is a classic example of the saturation optical illusion.

00:04:54It shows how our brain perceives color in a very subjective way.

00:04:58The lighting and background of an object influence how we see it.

00:05:02So when the gray circle is put against a darker background, we tend to believe it's

00:05:06brighter than its true color, and vice versa.

00:05:14This illusion is called the impossible triangle.

00:05:17But wait, what makes it so impossible?

00:05:20You only have a few seconds to figure that out!

00:05:30The so-called Penrose Triangle is also known as the impossible triangle, because it could

00:05:35never exist in reality.

00:05:38This magical triangle defies the laws of Euclidean geometry.

00:05:42If you follow the ball sliding on the surface of the triangle from the top point, you'll

00:05:47notice something strange.

00:05:49It looks like the left side of the triangle is extending away from the viewer, while the

00:05:54right side is closer to you.

00:05:56The Penrose Triangle is the type of geometrical figure that can only exist as an optical illusion,

00:06:02because this is what it looks like if we dismember it.

00:06:06Not a triangle at all, huh?

00:06:12Take a look at this image.

00:06:14Which line do you think continues the black one?

00:06:17The red line or the blue line?

00:06:26As much as it looks like it's the blue line, it's actually the red line.

00:06:30This illusion was first talked about in the 1960s, and it's called the Poggendorf illusion.

00:06:36This is a classic example of how our brain perceives geometric shapes and depth.

00:06:41According to scientists, our brain tries to perceive two-dimensional pictures with three-dimensional

00:06:47properties.

00:06:48This is why it distorts the depth between lines in this image.

00:06:52Pretty intense, huh?

00:06:57Take a look at this staircase.

00:07:00Now let's flip the image upside down.

00:07:02It still looks like a staircase, but instead of going from right to left, it looks like

00:07:06it's going from left to right.

00:07:09Don't blink though.

00:07:10If you blink, the illusion will disappear, and you will be left with the original image.

00:07:21This illusion is known as Schroeder's staircase, and it was invented by a German scientist,

00:07:26Heinrich Schroeder, back in 1858.

00:07:30It's really simple, but it talks about the same principle we saw in the previous illusion.

00:07:35If we dismember the staircase, you'll notice that the image is actually flat.

00:07:40What our brain perceives as a three-dimensional image is just a combination of shadow and

00:07:45light.

00:07:46This means that the 3D itself is already an optical illusion.

00:07:52This happens because our brain captures images and tries to fit them into what it already

00:07:57knows.

00:07:58It sees a shadow in a 2D image and it understands it as depth.

00:08:03Basically, it creates an unreal perspective of the object in front of our eyes.

00:08:08In this case, we call it a three-dimensional perspective.

00:08:15These circles seem to be moving pretty much everywhere they're told.

00:08:19Do you believe they are really moving, or could we say that they're stationary?

00:08:31I know it's hard to believe, but they're not moving an inch.

00:08:35This illusion has baffled the internet, but this is what's going on behind the scenes.

00:08:40There's a very, very thin inner and outer edge to these circles, and these edges are

00:08:46a different color than the bulk of the circle.

00:08:49To create the illusion, animators make these outer edges move, but since there's a variation

00:08:54in color, our brain interprets it as the entire circle moving.

00:08:59That's why even if we block the arrows, we still have the impression that the circles

00:09:03are moving.

00:09:08Take a look at this image.

00:09:10It looks like the square in the middle is breathing, right?

00:09:13Like it's growing in size and then shrinking.

00:09:16What if I told you that it's just rotating, but not changing in size?

00:09:27Here's what's happening.

00:09:28This illusion is called motion binding.

00:09:31It happens when our brain tries to predict the movement of one of the elements in the

00:09:35image.

00:09:36It's crazy stuff!

00:09:41Let's try another one.

00:09:43Stare at the cross in the middle of this image for 10 seconds, starting now.

00:09:59Did all of the colors from the image fade away and all you could see was a white page?

00:10:04Bizarrely, our brain just erases all the nuanced colors and leaves you with a white screen.

00:10:13First up, we have what looks like a gray bar moving up and down on an orange background.

00:10:18But if you stare at this little black dot, you may see the gray bar turn into a different

00:10:23color.

00:10:24What color did you see?

00:10:32Did you say blue?

00:10:34Yep, that was it!

00:10:39There's a graphic city with a dot in the middle of it.

00:10:42Stare at this dot for around 10 seconds, starting now.

00:10:52Wow, what just happened?

00:11:00Even after the picture turns black and white, our brain is still able to perceive the original

00:11:05colors.

00:11:06This is another example of an afterimage.

00:11:10After we've fed our brain with a fixed image of something, when we turn it black and white,

00:11:14our brain is still trying to guess the colors of it.

00:11:20Get ready for a new set of absolutely amazing optical illusions.

00:11:24Concentrate hard and don't let them trick you.

00:11:27Number 1.

00:11:28Look at these circles attentively, and you'll notice they're rotating.

00:11:39But that's just an illusion.

00:11:41The circles are completely still.

00:11:44Number 2.

00:11:45Which is bigger?

00:11:46The hat's height or its width?

00:11:56They're absolutely the same.

00:11:58Your eyes are playing tricks on you.

00:12:00Number 3.

00:12:01Which tower is leaning more?

00:12:10Ha look at that, they're the same.

00:12:12Even though one tower seems to be lopsided when placed next to a copy of itself, this

00:12:17is called the leaning tower illusion.

00:12:20Number 4.

00:12:21How many colors do you see in this image?

00:12:31However many you might see, in reality, there are only three.

00:12:36Number 5.

00:12:37The patterns in this picture seem to be moving.

00:12:47But once you focus on one of the ovals, the whole image becomes still.

00:12:52Number 6.

00:12:53What do you see in this picture?

00:12:55A moving star?

00:13:00Well, the star part is correct, but in reality, it's a static image.

00:13:07Once again, if you concentrate on any of its parts, the picture will stop moving.

00:13:12Number 7.

00:13:13It seems as if there are three cylinders in this image, and they're all rotating.

00:13:24But you know what to do.

00:13:26Stare at the center of the picture and all the movement will stop.

00:13:30Number 8.

00:13:31Which pencil is longer?

00:13:40They are of the same length.

00:13:43Number 9.

00:13:44Can you find three animals in this picture?

00:13:54Three bunnies are hiding in the tree branches.

00:13:57Number 10.

00:13:58Look at this rotating thingy.

00:14:08There's no doubt it's a 3D image, but in reality, it's just a set of rotating figures that

00:14:12creates such a three-dimensional effect.

00:14:16Number 11.

00:14:17Look at the screen and move your head forward and backward while focusing on the center

00:14:20of the image.

00:14:30When you come closer, the lines will seem to rotate counterclockwise.

00:14:34As soon as you start to move away from the image, the lines will rotate clockwise.

00:14:39Number 12.

00:14:40There is something hidden in this grid.

00:14:42Can you figure out what it is?

00:14:51If you can't spot it, try to shake your head, move further from the screen, or screw up

00:14:56your eyes.

00:14:57And just in case it hasn't helped either, let me make the grid less bright.

00:15:01Here we go.

00:15:02A lovely kitty.

00:15:04Number 14.

00:15:05Can you figure out which word is hidden here?

00:15:16That's bedside.

00:15:18Number 15.

00:15:19Look at this image and say which string is tied to the banana.

00:15:30I was almost sure it was string number 2.

00:15:33But in fact, that's the third one.

00:15:36Number 16.

00:15:37Which word is brighter?

00:15:46If you remove the grid, it'll become obvious that both words are of the same color.

00:15:51Number 17.

00:15:53Each horizontal band seems to be lighter in the middle and darker near the boundaries.

00:16:04But in reality, all of them are of a uniform shade.

00:16:08Number 18.

00:16:09Which line is longer, A or B?

00:16:20They're both of the same length.

00:16:22This illusion is created because your mind perceives this image in 3D space.

00:16:26That's why your brain tells you that the line which is closer to you must be shorter than

00:16:30the more distant one.

00:16:32Number 19.

00:16:33Are the woman's eyes of the same color?

00:16:43In fact, they are.

00:16:45You can make sure of it by comparing the color of her eyes and the hair accessory.

00:16:49Number 20.

00:16:50At first sight, it's just a red fan rotating over a bright green background.

00:16:55But try to concentrate on the black dot in the middle.

00:16:58You'll notice that the green under the fan is brighter than that of the surrounding ring.

00:17:02And the fan blades are actually redder than the central disc.

00:17:06Number 21.

00:17:08These two discs are pulsating, changing between dark and light.

00:17:12But are they doing it at the same time?

00:17:14Keep watching, and you'll see that it depends on the background.

00:17:18When it's light, the discs pulsate in sync.

00:17:21But when one part of the background is light and the other is dark, the discs seem to pulse

00:17:25not simultaneously.

00:17:27Number 22.

00:17:28Which word is hidden in this image?

00:17:39That's the word quality.

00:17:41Number 23.

00:17:43Which creature has a longer mouth, yellow or green?

00:17:54Their mouths are of the same length.

00:17:56Number 24.

00:17:57How about this picture?

00:17:59Which word does it hide?

00:18:08High five if you spotted the word quite.

00:18:11Number 25.

00:18:12That's how a set of simple straight lines can trick your brain.

00:18:22The square made up of vertical lines looks wider and shorter than the one formed of horizontal

00:18:27lines.

00:18:29Number 26.

00:18:30Look at this pyramid made of elongated diamonds.

00:18:33Are these diamonds darker at the top or at the bottom of the pyramid?

00:18:44All diamonds are identical, even though it surely doesn't look like that.

00:18:48But once we start moving around them, this way and comparing them with one another, it

00:18:52becomes obvious.

00:18:54Number 27.

00:18:55There are three animals hidden in this image.

00:19:06Right you are.

00:19:07There are three foxes over there in the tree.

00:19:10Number 28.

00:19:11Look at the wheel moving behind the red picket fence.

00:19:13Its spokes seem to be bent at the bottom.

00:19:24There's nothing wrong with the wheel, and the spokes are perfectly straight.

00:19:28Wanna make sure?

00:19:29Look, the fence is becoming transparent.

00:19:31Here you go.

00:19:33Number 29.

00:19:34Now, this wheel seems to be rotating clockwise, and the spokes are moving counterclockwise.

00:19:40But if you look at one of the spokes attentively, you'll notice it's actually staying in one

00:19:44place.

00:19:45Or rather, it makes a tiny shift forward and then returns to its place.

00:19:50Number 30.

00:19:51Which word is hidden in this image?

00:20:02It's feather.

00:20:04Number 31.

00:20:05What do you see in this picture?

00:20:15There's no definite answer here.

00:20:17Some people notice footprints, others, five bowling pins.

00:20:21Number 32.

00:20:22How about this picture?

00:20:24Are those three pairs of alternating grooves and ridges?

00:20:27Or maybe you see three shiny oval tubes.

00:20:38The main trick is that the right side of the image looks like a folded surface, and the

00:20:42left resembles the tubes.

00:20:45Number 33.

00:20:46Which word do you see here?

00:20:56It's the word change.

00:20:58Number 34.

00:21:00Look at the blue lines.

00:21:01They seem to be moving in pairs.

00:21:09And how about now?

00:21:10They suddenly form an outline of a diamond.

00:21:14Number 35.

00:21:15These wooden railroad tracks seem to be different in size.

00:21:25The lower one looks larger than the one at the top, but if we switch them, it becomes

00:21:29obvious that they're identical in size.

00:21:32Number 36.

00:21:34Do these horizontal lines seem parallel to you?

00:21:44And what if I tell you they are?

00:21:46And what you see is just an illusion.

00:21:49Number 37.

00:21:50Try to figure out which line is longer here.

00:22:01If your answer is, come on, I know they're of the same length, you're absolutely right.

00:22:07Number 38.

00:22:08Can you see anything unusual in this picture?

00:22:19There's a dalmatian hiding here.

00:22:22Number 39.

00:22:23There seems to be a bulge in the middle of this checkerboard.

00:22:34In reality, this checkerboard is regular, and each of its checks is perfectly square.

00:22:39You'll see it once we remove the tiny black and white ticks.

00:22:43Number 40.

00:22:44The blue horizontal stripes in this picture can't be parallel, right?

00:22:56But if we remove all the additional elements, it'll become apparent that the lines are not

00:23:00oblique.

00:23:03You'll have 10 seconds for each of the optical illusions.

00:23:06Your task will be to read the hidden number.

00:23:08You'll go from the easiest to the hardest riddles.

00:23:12Start off with an easy one for warm-up.

00:23:13Told you, it's 784.

00:23:29Moving on.

00:23:40I hope you were able to see the number 5346 here level up.

00:23:46How about this one?

00:23:59The correct answer is 725.

00:24:02And another one...

00:24:03Yes, it's 786.

00:24:18Now only 5% of people can read the next three numbers.

00:24:21Wanna give it a go?

00:24:33If your answer is 6012, it's correct.

00:24:37And here's another tricky one.

00:24:52It's 182.

00:24:53And if you saw it, you must have eagle vision.

00:24:57Told you it won't be easy, but try this one.

00:25:10The correct answer is 3708.

00:25:14Let's see how you handle some black and white illusions.

00:25:29And the first one is hiding the number 476.

00:25:33There you go.

00:25:35If that was too simple, how about this one?

00:25:48I hope you guessed it was 86347.

00:25:53And now, let's test your eyes with some hidden words.

00:25:56You still have 10 seconds for each of them.

00:26:08I'm sure you figured out it's the word NEVER.

00:26:11Can you read what this picture says?

00:26:25I can't sleep.

00:26:27How sad.

00:26:29This one is hiding the name of some month.

00:26:32You have to think outside the box to read it.

00:26:34Feel free to pause the video if you need more time.

00:26:39Well, the secret was to split it in half.

00:26:45Then you can see it's July.

00:26:48How about this one?

00:27:00It's the word RUN hiding in the back.

00:27:03Another one for you.

00:27:17If you found the gold.

00:27:20Here comes a tricky one.

00:27:32It takes some brain power to see it's BRAIN.

00:27:36Another one in this category.

00:27:38It's only getting more complicated.

00:27:51If you read the word MUSIC between the lines, you must be a genius.

00:27:56Now let's see if you can decipher these secret messages.

00:28:00I give you 10 seconds for this one.

00:28:10Well if someone says it's just a bunch of letters without meaning, you can easily prove

00:28:14them wrong.

00:28:16What do you see here?

00:28:29The power of imagination makes us infinite.

00:28:32Couldn't agree more.

00:28:34Here's another one.

00:28:48I hope you always desire to learn something useful.

00:28:53You deserve some dessert for all that mental activity.

00:28:56Here's just one cupcake among all those ice cream cones.

00:28:59Try to find it.

00:29:10There it is, yum.

00:29:13Get a tomato to go.

00:29:15I can only see a bunch of apples, but maybe you'll be luckier here.

00:29:27Find it.

00:29:29There's a butterfly hiding somewhere among those flowers.

00:29:32Do you see it?

00:29:38Fantastic!

00:29:44It's right there.

00:29:47Can you find the one and only pineapple in this image?

00:30:02Great job!

00:30:04One of these colorful leaves is in fact a mushroom.

00:30:07Can you spot it?

00:30:20Well done!

00:30:22How about a safari to give your eyes another test?

00:30:25Do you see anyone hiding in these leaves?

00:30:32Yep, it's a chameleon.

00:30:42And those guys know how to blend with the surroundings.

00:30:46There must be a groundhog hiding somewhere in the rocks.

00:30:49Find it in 10 seconds.

00:31:03Wow that was neat!

00:31:06One coyote won't do you much harm, but if it brings some friends, better make sure this

00:31:10area is coyote free.

00:31:23Start looking for a different picnic spot.

00:31:25One of those guys is right here.

00:31:29Watch where you step.

00:31:30I hear there are snakes on the ground.

00:31:45Found one.

00:31:46Better be careful.

00:31:48I don't see anyone roaming in this territory.

00:31:51Let's see if you have sharper eyes.

00:32:03What a beautiful gazelle.

00:32:05Did you manage to find it?

00:32:08The next illusion was created back in 1860.

00:32:11It shows how your brain perceives depth and shapes.

00:32:14So do you think the black line lines up with the blue one?

00:32:29If you answered yes, you're wrong.

00:32:31In fact, the black line stems from the red line.

00:32:36Now take a look at these illusions and remember what you see first.

00:32:39It can tell a lot about your personality.

00:32:53If it looks like a mountain to you, you're a down-to-earth person.

00:32:56You're persistent, reliable, and like to plan things.

00:33:00Overcoming obstacles makes you feel really happy.

00:33:02You appreciate stability and don't like to take risks.

00:33:06If you saw the upside-down wolf first, you're a natural leader.

00:33:10You keep your emotions under control even in the most stressful situations.

00:33:14Others admire and respect you for that.

00:33:16Remember, it's okay to ask for help sometimes if you need it.

00:33:20How about this one?

00:33:35If lips caught your eye first, you're realistic and always take things the way they are.

00:33:39You don't look for hidden meaning in what happens to you and what others say to you.

00:33:43It helps you get along with people well.

00:33:46If you noticed the trees first, you're an ambitious person and a perfectionist to the

00:33:50core.

00:33:51You're never happy with just okay and will always strive to be number one and make yourself

00:33:55and others happy.

00:33:58In the case the first thing you saw was the roots, you're an extremely progressive person.

00:34:04You love trying all the new technology and styles.

00:34:07You never settle and always try to make your life better and more exciting.

00:34:12Here comes the next one.

00:34:26If it looks like a parrot to you, you're the soul of any party.

00:34:30You like to be the center of attention, wear something bright, talk loudly and laugh your

00:34:34heart out.

00:34:35You have plenty of friends who love that about you.

00:34:39If you see a girl in a beautiful long dress, you must be the mysterious artsy type.

00:34:43You prefer to observe others being active and loud and get inspiration for your work.

00:34:48You notice little details and remember them to later put them on your canvas or paper.

00:34:55You have 10 seconds to decide what you see in this illusion here.

00:35:11If it's clearly an image of an elephant and a giraffe, you're a reliable and hardworking

00:35:15person.

00:35:16You feel responsible for yourself and your work and don't like to let others down.

00:35:21People appreciate you for that and share their secrets with you.

00:35:25If you saw some rabbits between the trees, you're not as simple as you might seem.

00:35:29You always think before you say or do something.

00:35:32You have a strategy for every life situation.

00:35:35It's important to you to be accepted and loved by others, so you do a lot to please them.

00:35:41New illusion, same task.

00:35:55If you see just two horses crossing a waterfall, you're an adventurous person.

00:36:00When someone offers trying something new or going to a new place, you're always up for

00:36:04it.

00:36:05You realize you might not like it in the end, but you'd rather try it and be sad than regret

00:36:09not going.

00:36:12In case you noticed several faces first, you always see the big picture and can find the

00:36:16right decision quickly.

00:36:18You know what you want and how to get there and never reconsider your own choices.

00:36:23These qualities will take you far in your career.

00:36:25Moving on.

00:36:26What a beautiful landscape, but is it hiding something?

00:36:42If all you see here is some sea and rocks, you're a calm and balanced person.

00:36:47Sometimes you're in a bad mood, but you always look on the bright side of life and move on.

00:36:51If you also noticed some animals drawn on the rocks, you have a great eye for detail.

00:36:56You always listen to both parties in a conflict before taking sides.

00:37:00You like doing research and drawing logical conclusions.

00:37:03Alright, what does this one say to you?

00:37:19In case you're positive it's a portrait of a young girl, you're an extrovert and can't

00:37:23survive a day without people.

00:37:25You're active on social media and enjoy going to social events where you can make even more

00:37:29friends.

00:37:31If you see some horses and birds, you're more of an introvert.

00:37:34You love being alone outside.

00:37:36You have some great friends, but you appreciate your personal space.

00:37:40Those who see the face and the horses at once, you've got the best of both worlds.

00:37:45You feel comfortable at a party with a few hundred new people around and alone reading

00:37:49a book.

00:37:50What can you say about this illusion?

00:38:05Those who see a face of a woman, you're realistic and pretty content with your life.

00:38:09You don't expect too much from others and are ready to stand your ground if you have

00:38:13to.

00:38:14If you see a saxophone player, you often prefer your imaginary world to the real one.

00:38:20In your dreams, you have turned your favorite hobby into a career.

00:38:23Try doing that in real life.

00:38:26What are your thoughts on this one?

00:38:41If it's clearly an older man to you, you've always been wiser and more reasonable than

00:38:45others your age.

00:38:46That's why people often ask you for advice, and you enjoy helping them out.

00:38:51If you see a young girl and an older man in the arch, you'll always be a child at heart.

00:38:57Your family means the world to you, and you always ask them for advice and protection.

00:39:02Hey there!

00:39:07Are you ready to get your mind blown by some absolutely stunning optical illusions?

00:39:11Or do you want to check how easily your mind can get tricked?

00:39:15Then watch our 11 optical illusions and let me know which impressed you the most!

00:39:21So here's the first one.

00:39:22Look at it attentively.

00:39:23What do you see here?

00:39:34Most people are sure they're looking at a 3D sphere on a patterned monochrome background.

00:39:39Or maybe you even feel that the ball is suspended in the air in front of some flat surface.

00:39:44In reality, this is a 2D image.

00:39:46The illusion occurs because of how the elements of the pattern are placed.

00:39:51Another 3D image, which is actually totally flat.

00:39:54I don't know about you, but it seems to me that I'm looking at sand dunes colored in

00:39:58a dazzle of zebras.

00:40:09But no.

00:40:10This effect occurs thanks to the different thickness and position of the stripes.

00:40:16Now, look at this picture.

00:40:19Don't take your eyes off of it even for a moment.

00:40:21See?

00:40:22The circles are moving.

00:40:32It's a popular motion illusion.

00:40:34One of the coolest things about it is that it grinds to a halt if you look at only one

00:40:38part of the image.

00:40:39Try it out!

00:40:40If you start looking around, it begins to move again.

00:40:43Is it magic?

00:40:45These circles might look simple and unassuming at first.

00:40:49But try moving your head back and forth while keeping your focus on the dot in the center

00:40:53of the image.

00:40:54Do you see that the circles formed by the rhombi start to rotate?

00:41:07When you're tilting your head towards the screen, they move in one direction.

00:41:11When you get farther from the image, they move in the opposite direction.

00:41:14And isn't that cool?

00:41:17How about something even more baffling?

00:41:19Look at this image.

00:41:21This grating is moving vertically, right?

00:41:23Not really.

00:41:24It's moving diagonally.

00:41:34This illusion occurs when a diagonally striped pole rotates horizontally around its vertical

00:41:39axis.

00:41:40To the viewer, it appears as though the stripes are moving downward rather than around the

00:41:44pole.

00:41:45Why so?

00:41:46Because you see the pole through a vertical window, which provides you with very little

00:41:49information about what's actually happening to it.

00:41:54Look at this beauty!

00:41:56Doesn't this kinetic illusion make you feel as if the image is both streaming, shimmering,

00:42:00and moving all at the same time?

00:42:11But the picture is actually a bunch of lines of the same color coming from the common center.

00:42:18The next illusion you're going to see is beautiful.

00:42:21The longer you look at the picture, the less static it seems.

00:42:24The image appears to be rotating even though it's actually not moving, not even a bit.

00:42:38This illusion occurs as a result of your eyes reacting to the size variations of the circles

00:42:43and interacting color contrasts.

00:42:46Wow, isn't this image bright and pretty?

00:42:50But don't stare at it for too long.

00:42:52It can give you a slight headache and make your eyes hurt.

00:42:54Anyway, now that I've warned you, doesn't it seem to you that all these rings are rotating

00:42:59in opposite directions?

00:43:09I know this effect is extremely strong, but I promise, it's not an animated GIF.

00:43:14It's a perfectly still image.

00:43:16But the design and colors make it look as if the rings are moving.

00:43:21Hey, look at this 3D purple landscape.

00:43:25Isn't it charming?

00:43:26The only problem is that, I bet you've already guessed, this is not a 3D image.

00:43:40It's the unusual bright pattern that creates this illusion.

00:43:45Here's another 3D illusion.

00:43:47This time, it's a checkerboard that seems to be bulging.

00:43:51Look at it attentively.

00:43:52The squares are perfectly straight.

00:43:54Their borderlines are parallel and perpendicular.

00:43:57But your brain insists this image is domed.

00:44:09The explanation is connected with the dots.

00:44:12They don't actually touch the borders of the squares.

00:44:14There's always a narrow margin, but your brain interprets those margins like lines,

00:44:19which messes up with your perception.

00:44:21And instead of the right angles, some of them seem acute while others appear obtuse.

00:44:27In this image, all of the edges are either vertical, horizontal, or at a 45-degree angle.

00:44:33But does it seem this way to you?

00:44:35I bet your answer is no.

00:44:46And there's one more thing you can do with this image to make it even cooler.

00:44:50Pause this video so that the image is static and move your scroll bar up and down.

00:44:55It'll appear that the illusion also has some element of motion to it.

00:45:00Awesome!

00:45:02Now, how about we try to figure out what makes it possible for optical illusions to trick

00:45:06our mind?

00:45:07I mean, you know 100% that what your eyes are telling your brain is wrong.

00:45:12But you just can't make yourself stop seeing it.

00:45:16Scientists are sure that sometimes our brain may unconsciously bend our perception of the

00:45:20world to meet our expectations.

00:45:23It fills in the gaps using your past experiences.

00:45:26In other words, it's not your eyes that play tricks on you.

00:45:29It's the way your brain interprets the image sent by the eyes.

00:45:33As an expert said, an optical illusion is a mismatch between the visual impression of

00:45:38the actual properties of the object.

00:45:40Anyway, my favorite illusion is the one with bright rotating circles.

00:45:45What about you?

00:45:46Share your opinion in the comments!

00:45:48Wow, you'll have 5 seconds for each of the illusions.

00:45:54Get ready for your mind to be bent.

00:45:57Can you tell which of the two yellow lines is longer?

00:46:00Seems obvious to me.

00:46:02Oh wow, I was wrong.

00:46:06None of them is longer.

00:46:08They are exactly the same length.

00:46:10This is a Ponzo illusion, not a Ponzi scheme.

00:46:13Your brain judges an object's size based on its background.

00:46:16Here, your brain decides the upper line that's further away has to be longer to catch up

00:46:21with the line that's closer.

00:46:23Here's another one for you.

00:46:25Do you think these lines are parallel to each other?

00:46:29Yep, they perfectly are.

00:46:33Again, your brain judges them based on their surroundings.

00:46:37All those short intersecting lines make you believe the longer lines are messed up.

00:46:42What about the red lines in this image?

00:46:44Are they straight or curved?

00:46:51This is the Herring illusion.

00:46:53The seemingly curved lines are perfectly straight and parallel to each other.

00:46:56The background makes you think otherwise.

00:47:00How many colors can you see here?

00:47:06Did you get red, purple, and green?

00:47:08In that case, you're all wrong.

00:47:10If you zoom in on this illustration, you can see all the spheres are of the same color.

00:47:15The stripes in the foreground make you believe the spheres are of different colors too.

00:47:20If you remove that foreground from the image, you'll see all the spheres are beige.

00:47:25Welcome to Ames Room.

00:47:27Nothing is impossible here.

00:47:28Which of these two people do you think is larger?

00:47:36Ames Room only seems to be a normal rectangular construction.

00:47:41It has slanted walls and an inclining ceiling and floor.

00:47:45The right corner is closer to you than the left corner.

00:47:48Your brain is used to rectangular rooms, so it corrects the image for you.

00:47:52The room seems normal, and the people inside seem weird.

00:47:57How many prongs do you think this trident has?

00:48:04The correct number is 3.

00:48:06Nah, just kidding, that would be too obvious.

00:48:08The empty space between the prisms forms the central prong.

00:48:12Take a closer look at the top of the prongs.

00:48:14There are just two openings.

00:48:17Can you tell what animal is hiding here?

00:48:24The secret here is to shake your head back and forth, or you can zoom out on the image.

00:48:28When you see the tiny version of it, it's obvious there's a cat hiding behind all those

00:48:33lines.

00:48:34Now focus on one point of this image for at least 15 seconds.

00:48:38Don't think of anything else, just keep looking.

00:48:41Can you see the image disappearing?

00:48:57It happens because the neurons in your brain filter information.

00:49:01They decide what's essential and what's useless.

00:49:04When you focus on one point, your brain receives no new information.

00:49:08Your peripheral vision takes new data from the surrounding white background and adapts

00:49:13the graphic to it.

00:49:15Here's the next illusion for you.

00:49:17Can you tell if the circles are moving or standing still?

00:49:24This image isn't animated.

00:49:26It's an example of a peripheral drift illusion that makes you see still images as moving

00:49:32When you stare at one part of the image without blinking, that part stops moving.

00:49:37Can you count all the black dots in this image?

00:49:403, 4, 6?

00:49:46There are 12 of them, but you can't see them all at once.

00:49:50That's because your peripheral vision fails you at tasks like this.

00:49:55What do you see in this image?

00:50:01If you're sure there are some lines and a light blue circle in the middle, you're wrong.

00:50:06The background is entirely white.

00:50:08You see the non-existent light blue circle because your brain adds color into the bare

00:50:13negative spaces.

00:50:15What about this one?

00:50:16What colors are these funky shapes?

00:50:23Just like in the previous illusion, they're all empty and white.

00:50:26That's a watercolor illusion.

00:50:28Your brain fills in the shape that has a bright line and a darker line at its borders with

00:50:33a brighter color.

00:50:35Now can you tell if this image is 3D?

00:50:42It's perfectly flat.

00:50:43The white shade in the middle creates the bulge effect.

00:50:46If you move closer, you'll notice it's spread its luminance.

00:50:50The task here is simple.

00:50:52Follow this spiral from the beginning to the end.

00:50:56Gotcha!

00:50:59You can't do it because this spiral isn't a spiral.

00:51:03It's made up of concentric circles.

00:51:05Your brain fills in the gaps for you because it's confused by this crazy background.

00:51:10Can you tell which rectangles are darker?

00:51:17Believe it or not, the rectangles under columns A and B are the exact same color.

00:51:23The surrounding black and white bars make you believe column A is way darker.

00:51:28Can you find the right shadow for this fun couple?

00:51:33No, it's this one.

00:51:38Only one of the locks is unlocked.

00:51:40Can you spot it in 5 seconds?

00:51:47Good job!

00:51:48This drawing is missing one piece.

00:51:50Pick the right one out of the 3 possible options.

00:51:58Well done!

00:51:59There's a little mouse hiding somewhere between the mushrooms.

00:52:03Your task is to find it.

00:52:11There it is, cute little thing!

00:52:13One of these jellyfish can't swim because it's an air balloon.

00:52:17Can you see it?

00:52:23Well it does look a lot like a jellyfish.

00:52:27What's that chirping?

00:52:28All birds but one are having a chat.

00:52:30One of them doesn't speak their language.

00:52:37It's a snail right here!

00:52:40I'd love to have some coffee.

00:52:42Please help me find it.

00:52:46Yay, it was hiding here all the time!

00:52:52All penguins look alike, but one is more special than the others.

00:52:55Can you spot it?

00:53:01This little guy right here has slightly different eyes.

00:53:05Let's take it one level up.

00:53:07Can you find the odd one out here?

00:53:14You could be a detective with your sharp eyes!

00:53:18One of these plants is slightly different from the others.

00:53:20You have 5 seconds to find it.

00:53:27Here it is!

00:53:29All these moons must produce a lot of light.

00:53:32Check the odd one out.

00:53:38I knew it!

00:53:40How about a little safari?

00:53:42The zebra on the right is different from its pal on the left in 5 ways.

00:53:47Can you name them all?

00:53:53I only found 3 differences.

00:53:55Oh, now I see!

00:53:58How about these lions?

00:54:02Again, there are 5 not-so-obvious differences between them.

00:54:08Did you get them all?

00:54:10What about these antelopes?

00:54:13Oh, I didn't see the red nose!

00:54:20What a beautiful and peaceful landscape!

00:54:23It's different from the one on the left in 5 ways.

00:54:26Name them all.

00:54:32Well done!

00:54:34Here are 2 scenes from a busy city life for you.

00:54:37The task remains the same.

00:54:43I only managed to find 3 differences here.

00:54:47Let's go see some waterfalls.

00:54:49Nothing is wrong with the second image.

00:54:56I got it!

00:54:57What about you?

00:54:59The fall is my favorite season.

00:55:01Can you notice 5 ways these pictures don't match?

00:55:07Fantastic!

00:55:10It's beach time, but you can't relax until you find 5 differences here.

00:55:21Enjoy your well-deserved rest!

00:55:23Alright, enough, moving on!

00:55:27What you see in the next images can tell a lot about your personality.

00:55:30Let's start with this one.

00:55:37If it's a woman reading a book to you, you're a practical and goal-oriented person.

00:55:41You work a lot.

00:55:42You're great at planning and know how to keep your emotions under control.

00:55:46Those who notice Salvador Dali's face, first of all, are artists at heart.

00:55:51Even if your job doesn't have to do with creativity, you find your own ways to express

00:55:55yourself through drawing, writing, or music.

00:55:58If you noticed an armchair first, you never look for easy and obvious solutions in your

00:56:03life.

00:56:04You always surprise everyone else with your unique vision of the world.

00:56:08How about this one?

00:56:09What do you see here?

00:56:15If they're women with umbrellas to you, you've plenty of friends because you're open-minded

00:56:20and mix with new people easily.

00:56:22You enjoy spending time surrounded by others and share everything with them.

00:56:27If it's a sad man's face to you, you're wise beyond your years.

00:56:32Sometimes you need to stop and think about life.

00:56:34At these moments, you prefer to be alone.

00:56:37You don't have that many friends, but you're loyal and always ready to help them.

00:56:41Alright, what can you say about this image?

00:56:49If it's a man sitting down by the water to you, you must be smart and careful with

00:56:53what you do and what you say.

00:56:55You always think twice before making an important decision and rarely regret anything you've

00:57:01done.

00:57:02If you see a face here, you're more emotional than rational.

00:57:05You'll always pick a new and unknown path and never think for too long when you have

00:57:09to make a decision.

00:57:11It's easy to make you cry or smile, but you get over things quickly as well.

00:57:16Here's another illusion for you.

00:57:23If it looks like a couple of playful squirrels to you, you must be a natural explorer.

00:57:27You don't feel happy staying in one place and are always the first to try new things

00:57:32and visit new places.

00:57:33You're active, charismatic, and fun to be around.

00:57:37If you clearly see a woman's face here, you prefer to stick to the plan and don't

00:57:41like surprises.

00:57:42You're a natural leader and great at delegating tasks to others.

00:57:46They respect you and follow your lead.

00:57:49What about this one?

00:57:55If it looks like a lifeless forested area to you, you're most likely better at sciences

00:58:00than at arts.

00:58:01You can fix any gadget or at least carefully follow the instructions to one of those.

00:58:05Your mind is a well-organized chamber.

00:58:08If you instantly saw animals here, you must be into arts and creativity.

00:58:13You don't even know manuals exist.

00:58:15You like to live in the moment and always listen to your heart.

00:58:21How about we create your psychological portrait using optical illusions?

00:58:26You game?

00:58:27The rules are simple, just remember the first thing you saw in the picture.

00:58:33If you see a horse in this picture, you're a very valuable friend.

00:58:37You have excellent communication skills, and you're very confident and reliable.

00:58:42But if the first thing you saw here is the horse's head, it may mean you're critical

00:58:47of everything, and the opinion of others can't throw you off the path.

00:58:52The next illusion.

00:58:53Those who saw a crocodile here love a quiet life and don't like to open up to something

00:58:59new.

00:59:00But if you saw a boat, you're more creative than other people and pay attention to small

00:59:04details.

00:59:06Those who see a young woman here have an analytical mind and use their left brain more.

00:59:12If you see an old man, you're likely to be a very gentle and sensitive person who

00:59:17can be very empathetic to other people.

00:59:20You're more creative, and you use the right side of your brain.

00:59:24The white pillars in the picture mean you like comfort and safety.

00:59:29But you should leave the comfort zone to gain more experience and achieve something new.

00:59:34But if the first thing you see is the silhouettes of two men, then you're the kind of person

00:59:39who doesn't sit in place and is ready to move constantly.

00:59:44Are these flowers or a woman's face?

00:59:47If it's flowers for you, then you appreciate the world you live in and just love nature.

00:59:53And if the first thing to draw your eye was a woman's face, then you have a great ability

00:59:58to highlight details from the environment that will help you to make the right decision.

01:00:04If an orange explosion is painted for you here, you have incredible leadership qualities.

01:00:10But if the first thing you see in this picture is black fingers, then you're a very compassionate,

01:00:16generous, and kind person.

01:00:18Hey, did you see two faces here?

01:00:21You're an extrovert, you're social, and you're constantly thinking about other people.

01:00:26But you also get influenced easily, so try to surround yourself only with good people.

01:00:32If you see a candlestick here, you're the exact opposite.

01:00:36You think more about yourself than about other people, and you like to sit at home rather

01:00:40than having noisy parties with a bunch of people.

01:00:43Ooh, this one is scary.

01:00:46If you see a skull here, it means it's hard for you to make decisions and move forward.

01:00:51But you need to find the courage and overcome the circumstances.

01:00:55It's the only way for you to become stronger.

01:00:58But if you see a woman, you're probably feeling like a squeezed lemon, both emotionally

01:01:03and physically.

01:01:05Perhaps you have just ended a difficult period in your life.

01:01:08In any case, stay on the bright side!

01:01:12If you see trees here, you must be an ambitious person who loves to bring everything to perfection.

01:01:19If you saw the roots at the first moment, it means you're a progressive person who

01:01:23strives for improvement.

01:01:25If the whole picture looked like dark lips to you, then you're a person who doesn't

01:01:29like to go deep into something and study too much.

01:01:32Hey, where are those chocolate lips?

01:01:35What do we have here?

01:01:37Is it a river and a cliff?

01:01:39Then you're an optimist who adapts easily to the changes in life.

01:01:43But if the first thing you see is a white cat, then you like stability, and you're

01:01:49in an emotional and mental balance.

01:01:52And you're a cat lover, of course.

01:01:54But if you see a face here, then you're a very creative person.

01:01:57You see a new opportunity in every detail of the world, and you're very curious.

01:02:04Whoa, is this an explosion?

01:02:07Then you're easily scared.

01:02:09You often feel fear of something new and unknown.

01:02:12You may even be in conflict with yourself.

01:02:15But if you see a passionate kiss in the smoke, then you value relationships and family the

01:02:21most in life.

01:02:22This is the highest priority for you.

01:02:25Ooh, cute bears!

01:02:27If you saw them first, then you can easily solve problems.

01:02:31You see a picture from far away, notice all the details, and can find the best solution.

01:02:37But if for you this picture is a mountain landscape, then you are a more intuitive person.

01:02:42You're guided by your sixth sense when decision-making.

01:02:47Are you a realist?

01:02:48If you saw a big blue cat here, then yes, you don't have much fantasy, but you see

01:02:53the world as it is, and it helps you make plans on how to conquer it.

01:02:59If a little mouse hits your eyes first, you can see the positive even in the worst-case

01:03:04scenario.

01:03:05For you, the glass is always half-full.

01:03:09The next illusion.

01:03:10If you see a girl at the window, then be careful.

01:03:14This may suggest that you expect something unpleasant to happen, and you're also probably

01:03:19an impulsive person.

01:03:21If you see a skull here, then you're pessimistic.

01:03:25Your friends may call you a cynic, but you consider yourself a realist.

01:03:31Creativity against analytics?

01:03:32What do you see?

01:03:34If the red saxophonist is the first thing you see, then you are a person who likes to

01:03:38systematize and analyze information.

01:03:41You must be good at math and foreign languages.

01:03:44And if you see a portrait of a woman here, then you're an emotional and creative person.

01:03:51Is it a bird?

01:03:52Then you're a daydreamer, though a little absent-minded.

01:03:56But you strive to make the world a better place and invent ways to do so.

01:04:00And if there's a big face of a lion here, then you're a very brave person who's ready

01:04:05to face their insecurities and come out the winner of any fight.

01:04:10And here we have crocodiles?

01:04:14Then maybe you like to be in charge and manage your life.

01:04:17Orders from other people make you suffer because you're a natural leader.

01:04:22If you see a bird in the middle, you're ready to help others.

01:04:25You're reliable and friendly.

01:04:27Okay, if the first thing you see here is a car, then you're a person who appreciates

01:04:32their freedom.

01:04:34You like to break away on an unexpected journey, meet new people, and see new places.

01:04:40If you saw a person with binoculars, it means you have an analytical type of thinking and

01:04:45you like to look at things from afar, often missing small details.

01:04:49And although you can absorb a lot of visual information, you should focus on the smaller

01:04:54things too.

01:04:56If you saw the letter A, then congratulations!

01:04:59You have a very sharp vision, just like an eagle.

01:05:02So hey, you can dive on a salmon!

01:05:05And you have well-developed intuition.

01:05:08Oh, this one is harder!

01:05:10If you're a girl and you've seen a man's face here, then either you're looking for

01:05:15a partner, or your current partner is a priority in your life and you feel a strong emotional

01:05:20connection with him.

01:05:22But if you see a woman's face, then you feel comfortable and self-sufficient.

01:05:28Guys who saw a man's face are concerned about relationships with other men, whether

01:05:32they are colleagues, friends, or even other guys in the gym.

01:05:36And if you see a female face, you're looking for your love.

01:05:40But take your time, or else you may push too hard.

01:05:46This is a test for Super Sherlock.

01:05:49Of course, it's two squirrels, right?

01:05:52Well, that means you're pretty lazy, and you don't get too much into details.

01:05:56Now tilt your head a little to the left.

01:05:59Now you can see a woman's face.

01:06:02But if that's what you saw from the beginning, then you're an incredibly attentive person

01:06:07who can get along well with other people.

01:06:10And now we will determine your psychological age.

01:06:14If the first thing you saw was old people's faces, then you have already lived a long

01:06:19and colorful life.

01:06:21You definitely have something to remember.

01:06:23But if you see a young couple sitting next to each other, then you're young and all

01:06:28the fun is waiting for you.

01:06:31Now be ready to give a quick answer.

01:06:34Remember what you see first.

01:06:35Let's go!

01:06:37If you notice a smiling face, you're an optimist.

01:06:41If it's the open book, you're smart and have a well-developed intuition.

01:06:46If it was roses, you're calm and kind.

01:06:49The tilted cross means that you're faithful.

01:06:52Balloons mean cheerfulness and good imagination.

01:06:56If the first thing you saw was a heart, then you're gentle and affectionate.

01:07:01The lion's face means that you're fearless.

01:07:04And if at first you notice the tie, you're determined and diligent.

01:07:09Oh, and if you saw the ice cream cone, then it's time for an eye exam, cause there wasn't

01:07:15one in the picture.

01:07:20This fresh set of optical illusions will definitely challenge your visual perception.

01:07:25If your brain isn't happy when you look at things that spin and flash, be careful

01:07:29and get somebody to watch this astonishing illusionary art with you.

01:07:33Ready?

01:07:34Go full screen and let's get started!

01:07:37Take a look at this pair of circles.

01:07:47It's not an illusion, they're identical and they do rotate.

01:07:51But they don't actually move across the screen.

01:07:54The arrows confuse your brain, so it seems that the circles are shrinking and even moving

01:07:58back and forth.

01:08:00If you manage to focus your gaze so that they stop moving, you're a wizard!

01:08:06What about this shining star?

01:08:08Is it static or dynamic?

01:08:19Although the star seems to be pulsing, its size doesn't change at all.

01:08:24But its popping color creates an illusion of movement.

01:08:29Let's move on to our next one.

01:08:31Check this out.

01:08:32Can you spot any movement?

01:08:42This picture is static.

01:08:44But if you take your time to look at these flowers carefully, your brain will definitely

01:08:48convince you that they're moving.

01:08:51What about this picture?

01:09:02The direction of this pattern makes the brain think that the circle is rotating to the left.

01:09:07But it's a lie.

01:09:09The same goes for this cute pattern.

01:09:20Can you see it spinning around?

01:09:23What about this picture?

01:09:25Can you spot any movement?

01:09:31Well, in this case, it's not surprising because this image is animated.

01:09:39An optical illusion is not always an optical illusion, so be careful.

01:09:45Let's take a look at the next one.

01:09:55This star seems to be dancing because its asymmetrical shape confuses your brain's expectations.

01:10:02Maybe it's time to ask ourselves, what else is my brain lying to me about right now?

01:10:08What can you say about this beautiful pattern?

01:10:10Is it just a basic optical illusion or an animated video?

01:10:23That's right, it's an animation!

01:10:26Here's our next one.

01:10:28If you focus all your attention on the middle of this picture, it will soon begin to move.

01:10:42But in fact, it stays the same.

01:10:45Don't let your brain play tricks on you.

01:10:47Your perception of this image may change if you blink a bunch of times and shake your

01:10:51head.

01:10:53Moving on, take a look at this tricky pattern.

01:10:56Is this image static?

01:11:01Yes, it truly is.

01:11:09Some optical illusions work by fooling around with contrasts in our field of vision.

01:11:23These two circles consist of small rotating striped circles.

01:11:27They appear to change the direction of rotating thanks to how our brains deal with information

01:11:32immediately within our focus.

01:11:35It's different from the way it processes peripheral information.

01:11:38You can see it when you focus on one circle and then on another.

01:11:43Are you dizzy yet?

01:11:44Let's move on to the next one.

01:11:46Zigzag is a great tool to create a bunch of optical illusions that can make you feel like

01:11:50you're flying.

01:11:52Note that this particular zigzag pattern is animated.

01:11:55Is it?

01:11:59Nope, it's a static picture.

01:12:07Be careful with zigzags.

01:12:09The next optical illusion will make you see with your eyes closed.

01:12:13All you have to do is stare at this Marilyn Monroe's nose at the center of this portrait.

01:12:19Continue staring at the same spot for at least 7 seconds and try not to blink.

01:12:24Ready?

01:12:257, 6, 5, 4, 3, 2, 1.

01:12:33Now take a look at your ceiling and blink a bunch of times.

01:12:36Close your eyes.

01:12:37Can you still see the portrait?

01:12:39Don't worry, it'll disappear in a few seconds.

01:12:42This optical illusion is called an after image.

01:12:45It appears after you've stared at an image for some time.

01:12:49Usually it requires around 30 seconds.

01:12:52Then you close your eyes or look at a white piece of paper afterwards.

01:12:56Overstimulation makes the rods and cones in your eyes lose sensitivity.

01:13:01That's why for a short period afterward, you interpret colors as their paired primary color.

01:13:07Now let's take a look at this tricky pattern.

01:13:10Is this image static or dynamic?

01:13:21It's not an optical illusion.

01:13:23This pattern is animated.

01:13:25If you managed to guess, great job!

01:13:28Now let's take a look at this one.

01:13:31Do these spheres move across the screen?

01:13:40Nope, they don't.

01:13:42If you were careful enough, you noticed the top moving when you squinted and concentrated on the spheres.

01:13:49This optical illusion is static.

01:14:00But if you take your time and focus on the center of the screen, it will begin to rotate.

01:14:06Let's move on to our next one.

01:14:08Let's move on to our next one.

01:14:10This optical illusion will make you feel like a magician and level up your concentration skills.

01:14:15At this point, you probably see that the static circles begin to move, pop, and spin slightly.

01:14:21But which way?

01:14:32There's no right answer here.

01:14:34The largest circle probably spins to the left.

01:14:38But if you switch your focus to the center of the image, the same circle will begin to spin to the right.

01:14:44The movement will change depending on which layer of this image you're currently focusing on.

01:14:50Arrows inside these colorful circles may confuse your vision.

01:14:54Try not to look at them, and you'll notice that the circles inside this illusion aren't changing their shape or moving at all.

01:15:01It's pretty clear that this crazy watermelon isn't spinning.

01:15:05Isn't it?

01:15:19Try not to look at them, and you'll notice that the circles inside this illusion aren't changing their shape or moving at all.

01:15:23Nope. If you screw up with your eyes, you can verify this by focusing your gaze on the sphere.

01:15:30See? It doesn't move anymore.

01:15:33This figure can begin to move like a snake, and the black points will begin to blink white.

01:15:47But don't let your brain fool you. This image is still the same.

01:15:51Are you dizzy yet?

01:15:53Let's experiment with disappearing dots.

01:15:56Focus on the central green dot. Try not to blink for a while.

01:16:09You will see one or more of the yellow dots disappearing, and then reappearing randomly.

01:16:15Here's another illusion with disappearing dots.

01:16:18Thousands of people worldwide complained that this simple optical illusion had made them question reality.

01:16:24There are 12 black dots at the intersections of this image, but your brain won't let you see them all at once.

01:16:31Well, how many dots did you count?

01:16:33There are 12 black dots in this image, and it's a fact, but most people can't see all 12 dots at once.

01:16:40When you're focusing on that black dot in the center of your field of view, your visual system is automatically filling in what's going on around it.

01:16:49And this regular pattern of gray lines on a white background makes your brain suggest that there are no black dots at all.

01:16:56That's why you miss the intermittent black dots, or they disappear and reappear as your eye jitters around.

01:17:03This cute animation is also very tricky.

01:17:06It pictures a moon and six stars surrounding it.

01:17:09There's also a dotted circular layer moving in the background.

01:17:13Try not to move your head at all.

01:17:15If you manage to focus your eyes on the black dots, they will disappear.

01:17:20There's a dotted circular layer moving in the background.

01:17:23Try not to move your head at all.

01:17:25If you manage to focus your eyes on the moon and stay perfectly still, you'll soon notice that the stars begin to disappear.

01:17:33How many of them did you make disappear?

01:17:44There's no one correct answer here.

01:17:46The number of disappeared stars depends on your perception.

01:17:50This tricky wheel can make your brain think that it rotates, but it's a lie.

01:18:03You may notice that the wheel changes the direction when you tilt your head to the right or to the left.

01:18:09This trick will make your hands melt like water.

01:18:12Don't worry, it's not forever.

01:18:14Keep staring at the center of the screen for 30 seconds.

01:18:17Try not to blink.

01:18:20Keep staring at the center of the screen for 30 seconds.

01:18:23Keep staring at the center of the screen for 30 seconds.

01:18:48Now take a look at your hands.

01:18:50Are they melting?

01:18:51You can also look at some text and notice that your vision is wavy.

01:18:56Take a look at this tricky optical illusion.

01:18:58What can you say about this wheel?

01:19:00Is it static or dynamic?

01:19:11It's static.

01:19:12Your brain plays tricks on you.

01:19:15Now let's give your eyes a little break by changing the task.

01:19:18Can you spot an odd monkey out?

01:19:21Here it is.

01:19:31Can you find a different monster out?

01:19:42This guy in the right corner doesn't look as happy as the others.

01:19:46There are many zeros in here.

01:19:48Can you also see another hidden number?

01:19:51Here it is.

01:20:01Does this pattern consist of red apples only?

01:20:13Nope, here's one tomato.

01:20:16Can you find two similar emojis among this variety?

01:20:21Here they are.

01:20:31What about this set of emojis?

01:20:33Can you see two identical emojis?

01:20:44Here they are.

01:20:46Take a look at these emojis.

01:20:48Are they all different?

01:20:51Nope.

01:20:59These two emojis are similar.

01:21:02How many emojis can you find among this variety?

01:21:14There are three.

01:21:16What about this collection?

01:21:17Can you spot any identical emojis here?

01:21:21Here they are.

01:21:29This task is tricky.

01:21:31All these emojis are different.

01:21:33If you managed to crack our trick, good job!

01:21:36Take a look at this set.

01:21:38Can you find a pair of identical emojis?

01:21:40Nope, it's impossible.

01:21:42Because these two are similar.

01:21:44Does this cat crowd have any odd details?

01:21:55This guy over here is not a cat.

01:21:57It's a rabbit.

01:21:59Can you find a four-leaf clover in here?

01:22:02Here it is.

01:22:04Can you spot a four-leaf clover in here?

01:22:07Nope.

01:22:08Can you find a four-leaf clover in here?

01:22:19Here it is.

01:22:20Lucky you!

01:22:23They say, seeing is believing.

01:22:26But is it really so?

01:22:28Optical illusions have a mind-boggling way to trick our brains.

01:22:31They use a combination of colors, light, or particular patterns

01:22:35that can make us see things that aren't there.

01:22:38Today, we're taking our brains for a test drive to see how these illusions work.

01:22:43If you look at this image attentively,

01:22:45you'll notice a moving square that appears to be changing tones.

01:22:49What shades do you see?

01:22:50Dark, then light, then dark again?

01:22:53Wrong! The square doesn't change color at all.

01:22:57The creator of this illusion is a Japanese psychologist and artist,

01:23:00Akiyoshi Kitaoka.

01:23:02According to him,

01:23:03you can see your own brain changing its guess about the color of the square.

01:23:08Color is already an illusion created by our brains.

01:23:11It happens so that the color is created inside our visual systems.

01:23:15What our eyes perceive as blue

01:23:17is actually a wavelength that is reflected as that color.

01:23:22Neuroscientists say that about 50% of our brain is involved in the vision process.

01:23:27Visual signals are dispersed to more than 30 areas of our brain.

01:23:31Each area has a special function to process color, motion, depth, and form.

01:23:35All this information is combined, and voila!

01:23:39We can distinguish shape and color.

01:23:42Funnily enough,

01:23:43neuroscientists still don't understand the details of how all this happens.

01:23:47And neither do we, but we sure give it a try.

01:23:50Moving on, let's take a look at this staircase.

01:23:53It looks pretty simple, right?

01:23:55Well, now let's flip the image upside down.

01:23:58It still looks like a staircase,

01:23:59but instead of going from right to left,

01:24:01it looks like it's going from left to right.

01:24:04But don't blink.

01:24:06If you blink, the illusion will disappear,

01:24:08and you will be left with the original image.

01:24:11Whoa, I think my brain just got really tired.

01:24:15This illusion is known as Schroeder's staircase,

01:24:17and it was invented by a German scientist, Heinrich Schroeder,

01:24:20back in 1858.

01:24:22It's really simple,

01:24:23yet it reveals a fundamental mechanism of how our brain works.

01:24:27Let's understand why.

01:24:29If you sorta disassemble the staircase,

01:24:31you'll notice that the image is flat.

01:24:33What our brain perceives as a 3D image

01:24:35is just a combination of shadow and light.

01:24:39This means that the 3D itself is already an optical illusion.

01:24:44This happens because our brain captures images

01:24:46and tries to fit them into what it already knows.

01:24:49So it sees a shadow in a 2D image,

01:24:51and it understands depth.

01:24:54Basically, it creates an unreal perspective of the object

01:24:56in front of our eyes.

01:24:59In this case, we call it a three-dimensional perspective.

01:25:03In 2020, Japanese mathematician Kokichi Sugihara

01:25:07took this illusion one step further.

01:25:09Let's take a look.

01:25:11At first glance, it looks just like a regular staircase.

01:25:14Again.

01:25:15But now, let's place an object at the top of the staircase

01:25:19and flip it at a 100-degree angle.

01:25:22I can't believe my eyes with this one.

01:25:24The object that appeared to be on top

01:25:26suddenly looks like it's at the bottom of the staircase.

01:25:29No wonder this work won Best Illusion of 2020.

01:25:32According to Sugihara,

01:25:33with this illusion,

01:25:34we are literally witnessing the way our brain tricks us

01:25:37into perceiving unreal things.

01:25:40At the heart of the illusion is a simple trick.

01:25:42The stairs aren't really stairs.

01:25:45They continue to be a flat 2D surface,

01:25:47making clever use of angles and shading

01:25:50to trick our brains.

01:25:52The 2D image was printed and glued

01:25:54into a basic 3D structure.

01:25:56But there is no real depth in the stairs,

01:25:58just the illusion of it.

01:26:00Got it?

01:26:02Look at this image for a moment

01:26:04and tell me how many bars you can count.

01:26:06This illusion has left the internet baffled.

01:26:08People have counted as many as 11 bars,

01:26:11but most count about 7 to 8 bars.

01:26:14According to the creator of this image,

01:26:16there are only 6 complete bars.

01:26:18Try counting from top to bottom

01:26:20and you'll notice that the upper bars are real.

01:26:23But by the time you get to the 6th bar,

01:26:25things start to get blurry and confusing.

01:26:27That's because the last 2 bars are incomplete,

01:26:30so when you try to count them,

01:26:31they appear to multiply

01:26:32and only leave you more confused.

01:26:35If you trace your pointer down

01:26:36the 7th and 8th bar,

01:26:38you'll be able to see that they are incomplete.

01:26:41They were only put there to confuse you.

01:26:45Can you tell if the dark blue lines

01:26:47are parallel to each other

01:26:48or whether they're inclined?

01:26:51They sure look crooked,

01:26:52but in reality, they're not.

01:26:54This classical optical illusion

01:26:56was first described over 100 years ago,

01:26:59but it wasn't until the 1970s

01:27:00that it got its current name.

01:27:05A guy named Steve Simpson

01:27:07noticed a similar effect

01:27:08on the wall of a cafe in Bristol,

01:27:10and here we are.

01:27:12Now, let's see how this works.

01:27:15First, let's blur the image a little bit.

01:27:17Oh, a little bit more.

01:27:19There you go.

01:27:20This way, you'll be able to see

01:27:21that the dark blue lines

01:27:22are parallel to each other.

01:27:24If you look closely,

01:27:25the little black and white bricks

01:27:27at the intersection of white lines

01:27:29are what made this illusion possible.

01:27:32In addition to that,

01:27:33the curved elements inside the blue lines

01:27:35help to make the elusive effect even stronger.

01:27:38We'll understand why in a little bit.

01:27:41Up next,

01:27:42look at this black square

01:27:44crisscrossed with perpendicular white lines.

01:27:46If you look attentively,

01:27:48you'll notice that the white dots

01:27:49situated at the intersection of the grid

01:27:51shift their color from white to grey and black.

01:27:54When you concentrate on a particular dot,

01:27:57you'll see that it's white,

01:27:59but as soon as your attention wanders,

01:28:01the dot turns grey.

01:28:03That's the Hermann grid illusion.

01:28:05Amazing, isn't it?

01:28:07We can take this illusion one step further

01:28:09by positioning white dots

01:28:11at the intersection of grey lines.

01:28:13All of them are placed

01:28:14on top of the black background.

01:28:16If you look at this image for long enough,

01:28:18you'll notice black dots

01:28:19starting to pop up

01:28:20at the intersections of the grid,

01:28:22creating a scintillating effect.

01:28:24Another name for this illusion

01:28:26is a simultaneous light contrast illusion.

01:28:28As you perceive the dots

01:28:30as white at one moment,

01:28:32and then, almost immediately,

01:28:34you see them as black.

01:28:36So, why do our senses

01:28:38let us down by making us see grey

01:28:40or black instead of white?

01:28:42This illusion demonstrates

01:28:44one of the most important principles

01:28:46of human perception.

01:28:48You don't always see things

01:28:49for what they really are.

01:28:51The retinal cells in our eyes

01:28:53act as light receptors.

01:28:55When only one cell receptor

01:28:57gets illuminated,

01:28:58it perceives more light

01:28:59than when its colleagues

01:29:00are also illuminated.

01:29:02This prevents the firing

01:29:04of nearby receptors.

01:29:05With the Hermann grid illusion,

01:29:07the white lines are arranged

01:29:08in such a way

01:29:09that there's more light

01:29:10around the intersections

01:29:12than along the lines themselves.

01:29:14Thus, the dots at the intersections

01:29:16are more inhibited

01:29:17and you see darker spots.

01:29:20This next illusion

01:29:21is called the Pac-Man chaser.

01:29:23You'll see why.

01:29:24Stare at the central cross

01:29:26for five seconds.

01:29:30The image appears to be in motion,

01:29:32doesn't it?

01:29:33And you might also see

01:29:34a green disc appear

01:29:35in between the lilac spheres

01:29:37from time to time.

01:29:38Now, this image allows us

01:29:40to witness two illusions simultaneously.

01:29:43Even though the image

01:29:44appears to be in continuous motion,

01:29:46nothing here is moving.

01:29:48We promise.

01:29:49This phenomenon

01:29:50is known as the phi phenomenon.

01:29:52It happens when

01:29:53stationary objects

01:29:54are placed side-by-side

01:29:55and illuminated rapidly

01:29:57one after the other,

01:29:58creating an illusion of movement.

01:30:01Now look at the center

01:30:02of the image again.

01:30:03Can you see the green disc?

01:30:05This illusion

01:30:06is called an afterimage.

01:30:08And this happens

01:30:09when your brain

01:30:10tries to substitute an item

01:30:11with something else

01:30:12as the original item disappears.

01:30:14But why is it green,

01:30:16you might ask?

01:30:17That's because green

01:30:18is lilac's complementary color.

01:30:20If we were to change

01:30:21the color of the disc to blue,

01:30:23then the color of the gap

01:30:25changes to yellow,

01:30:26which is blue's

01:30:27complementary color.

01:30:28Neat, right?

01:30:30How many shades of grey

01:30:31can you count in this bar?

01:30:40The correct answer is

01:30:4211.

01:30:43Nah, just kidding.

01:30:45The bar in the middle

01:30:46is one constant color.

01:30:48The background

01:30:49makes you see more than

01:30:50one shade of grey here.

01:30:51You can see it

01:30:52if you cover the spaces

01:30:53above and below the bar.

01:30:55Can you tell

01:30:56which of the surfaces

01:30:57is darker?

01:30:58Is it A or B?

01:31:07Surface A

01:31:08only seems obviously darker.

01:31:09In reality,

01:31:10they are exactly

01:31:11the same color.

01:31:12Cover the middle

01:31:13of the drawing

01:31:14with your hand to check it.

01:31:15Scientists

01:31:16still can't explain

01:31:17this illusion.

01:31:18One theory says

01:31:19this might be because

01:31:20of how your brain

01:31:21interprets the signals

01:31:22from the photoreceptors

01:31:23in your eyes.

01:31:24The most active cells

01:31:25reduce the activity

01:31:26in neighboring ones,

01:31:27and this creates

01:31:28a contrast

01:31:29that's not in fact real.

01:31:31Now,

01:31:32find the darkest square

01:31:33in this picture.

01:31:41Whichever square

01:31:42you chose,

01:31:43you can't be right.

01:31:44They're all the same color,

01:31:45just set against

01:31:46different backgrounds.

01:31:48Moving on.

01:31:49Do you pick white

01:31:50or black pieces?

01:31:51I'll let you choose.

01:32:00Well,

01:32:01you can't pick black

01:32:02or white here

01:32:03because the pieces

01:32:04are all the same color.

01:32:05The background

01:32:06and the way you perceive light

01:32:07explains this illusion.

01:32:09How many colors

01:32:10do you see here?

01:32:16I clearly see four.

01:32:17Hmm,

01:32:18it's actually two,

01:32:19red and green,

01:32:20one shade of each.

01:32:22You get the illusion

01:32:23there are different colors here

01:32:24because some of them

01:32:25are surrounded by white

01:32:26and some by green boxes.

01:32:28By the way,

01:32:29white isn't a color

01:32:30in scientific terms.

01:32:31It's the presence

01:32:32of all colors.

01:32:33That's why we don't

01:32:34count it as one.

01:32:36Here's another one for you.

01:32:37Which side is darker?

01:32:38Nope,

01:32:39it's not the right side.

01:32:40It's one shade of red

01:32:41that seems darker

01:32:42on the right

01:32:43because of the black background.

01:32:45Oh no,

01:32:46this table is tilting

01:32:47to the right

01:32:48and about to turn over.

01:32:49Or is it?

01:32:57Oh no,

01:32:58this table is tilting

01:32:59to the right

01:33:00and about to turn over.

01:33:01Or is it?

01:33:08No worries,

01:33:09it's perfectly stable.

01:33:10The slanted lines

01:33:11create this tilting effect.

01:33:13Both rectangles

01:33:14are parallel.

01:33:15You can check it

01:33:16with a ruler.

01:33:17How many faults

01:33:18do you see in this square?

01:33:27The correct answer

01:33:28is zero.

01:33:29This square

01:33:30by Walter Ehrenstein

01:33:31is perfect.

01:33:33It seems curved

01:33:34because it's placed

01:33:35inside a pattern

01:33:36of concentric circles.

01:33:38Would you prefer

01:33:39a rectangular

01:33:40or square table?

01:33:49No matter which one

01:33:50you chose,

01:33:51just take any.

01:33:52They're of exactly

01:33:53the same shape

01:33:54and size.

01:33:56Here's a classic

01:33:57ponzo illusion.

01:33:58Which of the green lines

01:33:59is longer?

01:34:00It's the one

01:34:01in the foreground.

01:34:02Just kidding,

01:34:03they're the same length.

01:34:04This illusion works

01:34:05because your brain

01:34:06interprets the image

01:34:07with perspective.

01:34:08And it's just

01:34:09a simple 2D image.

01:34:11How about a ride?

01:34:12Do you think

01:34:13this Ferris wheel

01:34:14is moving clockwise

01:34:15or counterclockwise?

01:34:21It's the one

01:34:22in the foreground.

01:34:23Just kidding,

01:34:24they're the same length.

01:34:25This illusion works

01:34:26because your brain

01:34:27interprets the image

01:34:28with perspective.

01:34:29Sorry guys,

01:34:30the ride is closed today.

01:34:31Any movement you see here

01:34:32is just an illusion.

01:34:34Here's an easy one

01:34:35for you.

01:34:36Try to quickly

01:34:37say the color

01:34:38of these words.

01:34:46Hey,

01:34:47it takes forever

01:34:48to focus on the colors

01:34:49without reading them.

01:34:50The right half

01:34:51of your brain

01:34:52is trying to name

01:34:53the colors,

01:34:54and the left half

01:34:55is trying to make

01:34:56you say the words.

01:34:57This is the illusion

01:34:58of gray dots.

01:34:59This is known

01:35:00as the Stroop effect

01:35:01and it's used as a test

01:35:02for jobs

01:35:03where concentration

01:35:04is a must.

01:35:05Can you count

01:35:06all the gray dots

01:35:07at the intersections

01:35:08in this grid?

01:35:16The correct answer

01:35:17is zero.

01:35:18This is a Hermann grid illusion.

01:35:20Your brain

01:35:21makes you think

01:35:22they are gray dots

01:35:23at the intersections

01:35:24because of the dark surroundings.

01:35:25If you look closer,

01:35:26all the dots

01:35:28are gone.

01:35:30Another good old classic,

01:35:31Necker cube.

01:35:32This was discovered

01:35:33in the 19th century.

01:35:34Do you think

01:35:35the blue wall

01:35:36is in the block

01:35:37or on the block?

01:35:46Is it the back wall

01:35:47or the side wall?

01:35:48There's no correct answer,

01:35:49so keep guessing.

01:35:52Is this just a set

01:35:53of some geometrical shapes

01:35:54or does it have

01:35:55a secret message?

01:35:58Eureka!

01:35:59That's the correct answer.

01:36:01Are you up

01:36:02for a helicopter ride?

01:36:03Pick the one

01:36:04with a longer line on top.

01:36:13It's impossible.

01:36:14They're equal in length

01:36:15and the surroundings

01:36:16make you believe otherwise.

01:36:18Time for some magic.

01:36:19You can turn

01:36:20this negative photo

01:36:21into a positive photo.

01:36:22Let's see what happens

01:36:23when we turn

01:36:24this negative photo

01:36:25into a positive photo.

01:36:28Turn this negative photo

01:36:29into a full-color image

01:36:30with the power

01:36:31of your brain.

01:36:32Stare at the dots

01:36:33at the center

01:36:34of the girl's face

01:36:35for about 30 seconds.

01:36:36Now,

01:36:37quickly turn your eyes

01:36:38to the center X

01:36:39of the white image

01:36:40on the right

01:36:41of the woman's face.

01:36:42Blink several times.

01:36:43Do you see the image

01:36:44of a girl

01:36:45in full color?

01:36:46If not,

01:36:47try staring

01:36:48at the negative image

01:36:49a bit longer

01:36:50or sit closer

01:36:51or further

01:36:52from your computer monitor.

01:36:53This illusion works

01:36:54when your rods

01:36:55and cones

01:36:56get overstimulated.

01:36:57Only the darkest

01:36:58part of the image

01:36:59are least affected

01:37:00by this.

01:37:01When you look away,

01:37:02they react the strongest

01:37:03and you can see

01:37:04the reverse

01:37:05of the original image.

01:37:06Some optical illusions

01:37:07with a double meaning

01:37:08can tell a lot

01:37:09about your personality.

01:37:10What do you see here?

01:37:19If it's a profile

01:37:20of a man to you,

01:37:21you're pretty realistic

01:37:22and take things

01:37:23for what they are.

01:37:24You trust others

01:37:25and easily rely

01:37:26on them at work

01:37:27and in your personal life.

01:37:28You mix

01:37:29with new people easily.

01:37:31If you notice

01:37:32the word liar,

01:37:33you always look

01:37:34for a hidden subtext

01:37:35in everything.

01:37:36It's not easy

01:37:37for you to trust others.

01:37:38Even when things

01:37:39are going just fine,

01:37:40you're always looking

01:37:41for some surprises

01:37:42coming your way.

01:37:54If it's just two,

01:37:55you're an ambitious person

01:37:56focused on your goals.

01:37:58When you have a plan,

01:37:59nothing can take you

01:38:00off your course.

01:38:01You're direct

01:38:02and always say

01:38:03what you really think.

01:38:05If you saw five pandas

01:38:06or more,

01:38:07you're a really creative person.

01:38:09You always see

01:38:10the little things

01:38:11others might not notice.

01:38:12You get inspiration

01:38:13when you least expect it,

01:38:14even from basic

01:38:15everyday events.

01:38:25If you see a huge eye

01:38:26on the ground,

01:38:27you're a settled person

01:38:28who's pretty content

01:38:29with their life.

01:38:30You have your home,

01:38:31job,

01:38:32and favorite places

01:38:33and wouldn't give up

01:38:34this comfort

01:38:35for some unknown path.

01:38:37If you see

01:38:38a landscape

01:38:39with some deep green abyss

01:38:40or a volcano crater,

01:38:41you long for adventures.

01:38:43You can't wait

01:38:44to explore the world

01:38:45and your biggest fear

01:38:46is settling down

01:38:47and not getting

01:38:48the chance to travel.

01:38:50Time for the next illusion.

01:38:51Those who see a face

01:38:52of a young girl here

01:38:53are pretty emotional

01:38:54and sentimental people.

01:38:56You miss someone

01:38:57or something

01:38:58that made you really happy

01:38:59and still can't let go.

01:39:01Try to accept

01:39:02the best is yet to come

01:39:03into your life.

01:39:05Those who see

01:39:06a young man

01:39:07staring at a landscape here

01:39:08are at the crossroads

01:39:09of their lives.

01:39:11You realize

01:39:12that you're not

01:39:13the only one

01:39:14who's feeling lonely.

01:39:16You realize

01:39:17that you're not

01:39:18the only one

01:39:19who's feeling lonely.

01:39:21You realize

01:39:22you need some changes

01:39:23to be happier,

01:39:24but you don't know

01:39:25what to start with.

01:39:26All roads

01:39:27are open to you.

01:39:28Just take that first step.

01:39:30Here's a really tricky one.

01:39:38If it looks like

01:39:39a landscape

01:39:40with a horseman to you,

01:39:41you're more extroverted

01:39:42than introverted.

01:39:44You enjoy

01:39:45your alone times,

01:39:46but mostly need

01:39:47the company of others

01:39:48to share with.

01:39:49You're fun,

01:39:50and you're a team player.

01:39:52If you see a wolf here,

01:39:53you must be more introverted

01:39:54than extroverted.

01:39:55You feel comfortable

01:39:56in your own company

01:39:57and aren't afraid

01:39:58to listen to yourself.

01:39:59You aren't afraid

01:40:00of responsibility

01:40:01and prefer to get

01:40:02all the credits

01:40:03for what you've done.

01:40:05How many colors

01:40:06do you see here?

01:40:07If your answer is 3,

01:40:08you're not wrong.

01:40:10Do you think it's 17?

01:40:12Could be.

01:40:13Although the image

01:40:14went viral just recently,

01:40:16the explanation

01:40:17to this mystery

01:40:18is at least

01:40:20a year and a half old.

01:40:22It was discovered

01:40:23by an Austrian math

01:40:24and physics professor,

01:40:25Mach.

01:40:26He noticed

01:40:27you can easily distinguish

01:40:28between similar colors

01:40:29of slightly contrasting shades

01:40:31when they're close

01:40:32to each other.

01:40:33When you set them apart,

01:40:34the difference

01:40:35is barely noticeable.

01:40:37The professor thought

01:40:38it had something to do

01:40:39with the construction

01:40:40of the eyeball

01:40:41and the tissue

01:40:42the retina is made of.

01:40:44The band's effect

01:40:45was later named

01:40:46Mach bands

01:40:47in his honor.

01:40:48Years later,

01:40:49with better technology,

01:40:50scientists found

01:40:51the professor

01:40:52was basically right.

01:40:54Your retina

01:40:55is similar to

01:40:56a cinema screen.

01:40:57It captures light

01:40:58that's projected

01:40:59through the pupil.

01:41:00Receptors are

01:41:01all over that screen.

01:41:02Some of them

01:41:03are more active

01:41:04under bright light

01:41:05and send a whole lot

01:41:06of signals to the brain.

01:41:08When two cells

01:41:09send similar signals,

01:41:10you might think

01:41:11it's the same shade.

01:41:13Nerves are trying

01:41:14to solve this problem.

01:41:15They send stronger signals

01:41:16to make the difference

01:41:17more obvious

01:41:18at the border

01:41:19of different shades.

01:41:20Your brain

01:41:21then notices

01:41:22a clear boundary.

01:41:24This explains

01:41:25why you can see

01:41:26the difference

01:41:27between similar shades

01:41:28when they're next

01:41:29to each other.

01:41:30The transition

01:41:31between colors

01:41:32can look like

01:41:33a separate color.

01:41:34Some people

01:41:35can't see the difference

01:41:36between contrasting colors

01:41:37in the picture

01:41:38because of how

01:41:39their brains are built.

01:41:40The color rendering

01:41:41abilities,

01:41:42brightness,

01:41:43and contrast

01:41:44of your laptop

01:41:45or smartphone screen

01:41:46is another reason.

01:41:47You don't have

01:41:48the same lighting

01:41:49in your house

01:41:50or office.

01:41:51Plus,

01:41:52you don't have

01:41:53the same optics

01:41:54in your eyes

01:41:55that screen light

01:41:56as anyone else.

01:41:57You also have

01:41:58a unique level

01:41:59of pigment density

01:42:00that affects

01:42:01how your eyes

01:42:02absorb light.

01:42:03You can even have

01:42:04more than regular

01:42:05three cone cell types

01:42:06and see more colors

01:42:07than others.

01:42:08And,

01:42:09some people

01:42:10are more affected

01:42:11by the mock bands

01:42:12phenomenon than others.

01:42:13That's why there's

01:42:14no correct answer

01:42:15to how many colors

01:42:16can make different people

01:42:17see one thing differently.

01:42:19The dress

01:42:20that was somehow

01:42:21gold and white,

01:42:22blue and black,

01:42:23blue and white,

01:42:24and blue and blue

01:42:25at the same time

01:42:26became a real sensation.

01:42:28The picture was taken

01:42:29on a cell phone

01:42:30in really weird lighting

01:42:32and overexposed.

01:42:34You can't tell

01:42:35if it was taken

01:42:36inside or outside,

01:42:37and that means

01:42:38you don't know

01:42:39if it's artificial

01:42:40or natural light.

01:42:41It's not clear

01:42:42if the light illuminates

01:42:43the dress

01:42:44from the front

01:42:46If it were backlit,

01:42:47there would have

01:42:48to be a shadow.

01:42:49Parts of the dress

01:42:50itself were in shadow.

01:42:51That shadow

01:42:52was reflecting off

01:42:53the dress itself,

01:42:54complicating things

01:42:55even more.

01:42:56Confused?

01:42:57Me too.

01:42:58When your brain

01:42:59doesn't have

01:43:00enough information,

01:43:01it fills in the gaps

01:43:02by making its own

01:43:03assumptions.

01:43:04It mostly makes them

01:43:05based on what it's

01:43:06previously seen

01:43:07or known.

01:43:08That's why your brain

01:43:09could make one guess

01:43:10about lighting conditions

01:43:11and someone else's,

01:43:12a totally different one.

01:43:15People who thought

01:43:16it was in a shadow

01:43:17believed the dress

01:43:18was white and gold.

01:43:19Same with those

01:43:20who thought it was

01:43:21a natural light.

01:43:23Shadows and blue sky

01:43:24over-represent blue light

01:43:25and make things

01:43:26seem yellowish.

01:43:27Oh, and the retailer

01:43:29of the dress

01:43:30officially confirmed

01:43:31it was black and blue,

01:43:33and that it was

01:43:34sold out in the first

01:43:3530 minutes of business

01:43:36the day after

01:43:37it had gone viral.

01:43:39A new debate

01:43:40over the color

01:43:41of retro sneakers

01:43:42happened a few years

01:43:43later for the same reason.

01:43:44Are they teal and gray?

01:43:46Or maybe pink and white?

01:43:48You can't be sure

01:43:49with weird camera quality,

01:43:50flash, and funky lighting.

01:43:53When you zoom in

01:43:54on the picture,

01:43:55you can notice

01:43:56the hand is unnaturally bluish.

01:43:58So depending on how

01:43:59sensitive your eyes

01:44:00are to light

01:44:01and how your brain

01:44:02fills the visual

01:44:03information gaps,

01:44:05the sneakers can

01:44:06look different to you.

01:44:07In reality,

01:44:08they turned out

01:44:09to be pink and white.

01:44:11Did these strawberries

01:44:12look red to you?

01:44:14In fact, they're

01:44:15gray and green.

01:44:16The picture has been

01:44:17drained of any red.

01:44:19Your brain still

01:44:20makes you see it

01:44:21because of something

01:44:22known as color constancy.

01:44:24Your brain can sometimes

01:44:25ignore information

01:44:26from the color of the light.

01:44:28It knows what strawberries are,

01:44:31and it also knows

01:44:32they're supposed to be red,

01:44:33so it helps you

01:44:34see them as such.

01:44:36When an astronaut

01:44:37posted a picture

01:44:38of some sand dunes,

01:44:39the Internet thought

01:44:40they were pits,

01:44:41not hills.

01:44:43Only when they

01:44:44flipped the pic over,

01:44:45people could see dunes

01:44:46in the indefinite pattern.

01:44:48Turns out your brain

01:44:49thought the sun

01:44:50was in the 1 o'clock position.

01:44:52It means it's supposed

01:44:53to be casting shadows

01:44:54from the upper right.

01:44:56In reality, it was casting

01:44:57shadows from the upper left.

01:45:00So turning it upside down

01:45:02makes things more usual

01:45:03to your brain.

01:45:04How many black spots

01:45:06can you see in this image?

01:45:08There are 12 of them,

01:45:09but most people

01:45:10can't see them all at once.

01:45:12All the dots are

01:45:13perfectly visible,

01:45:14but you can see

01:45:15each of them only

01:45:16when you look

01:45:17directly at it.

01:45:18Your peripheral vision

01:45:19isn't that perfect.

01:45:20Your brain has to

01:45:21fill in the blanks.

01:45:23The white between gray lines

01:45:24makes it think the dots

01:45:26are lighter than they are.

01:45:27So it decides to pretend

01:45:29there's just grayer

01:45:30and the dots aren't there.

01:45:32Although one of them

01:45:33looks twice the size

01:45:34of the other,

01:45:35these guys are

01:45:36of the same size.

01:45:38They're placed

01:45:39in an Ames room,

01:45:40invented by an American

01:45:41ophthalmologist

01:45:42in the 1940s.

01:45:44You'd have to look

01:45:45into a pinhole

01:45:46at a room that seems

01:45:47to be a regular square

01:45:48but is a trapezoid.

01:45:50The walls and ceilings

01:45:51are tilted,

01:45:52and this makes your eyes

01:45:53see one person tower

01:45:54over another

01:45:55even when they move around.

01:45:58If you have a toy train track

01:45:59at home,

01:46:00you can see how

01:46:01the next illusion

01:46:02works in reality.

01:46:03You take two segments

01:46:04of the same size

01:46:05and put them next

01:46:06to each other.

01:46:07One of them looks

01:46:08obviously larger

01:46:09than the other one.

01:46:10That's because

01:46:12your brain compares

01:46:13the two sides

01:46:14of the pieces

01:46:15that are next

01:46:16to each other.

01:46:17It compares

01:46:18the right side

01:46:19of the track

01:46:20that's on the left

01:46:21to the left side

01:46:22of the track

01:46:23that's on the right.

01:46:24When you compare

01:46:25squares A and B

01:46:26in the checker

01:46:27shadow illusion,

01:46:28you can tell

01:46:29square A

01:46:30is much darker

01:46:31than square B.

01:46:32Your brain expects

01:46:33the cylinder

01:46:34to throw a shadow

01:46:35on the board.

01:46:36It compensates

01:46:37for the alternating colors

01:46:38it expected to find.

01:46:39If you still don't believe

01:46:40the squares are

01:46:41similar,

01:46:42you can compare them

01:46:43with a color selector

01:46:44in any photo editing program.

01:46:46In the Ebbinghaus illusion,

01:46:48the two circles

01:46:49in the middle

01:46:50of their circle sets

01:46:51are of the same size.

01:46:53Turns out the way

01:46:54you perceive

01:46:55the size of things

01:46:56is all about context.

01:46:57The circle surrounded

01:46:58by larger ones

01:46:59seems smaller,

01:47:01and the one

01:47:02in the company

01:47:03of smaller circles

01:47:04seems to be a giant.

01:47:06There are 12 dots here,

01:47:07all of them are lilac.

01:47:09Your task is to

01:47:10stare at the cross

01:47:11in the middle

01:47:12of the dot ring.

01:47:13As one lilac dot

01:47:14disappears for a moment,

01:47:16a green dot

01:47:17takes its place.

01:47:18It also gradually

01:47:19wipes away

01:47:20other lilac dots

01:47:21one by one

01:47:22as it moves around

01:47:23the circle.

01:47:24This is the

01:47:25after-image effect

01:47:26in action.

01:47:27The rods and cones

01:47:28adjust to the

01:47:29constant disappearance

01:47:30of lilac dots.

01:47:32They replace it

01:47:33with a color

01:47:34from the opposite end

01:47:35of the spectrum,

01:47:36which is green.

01:47:38Seeing motion

01:47:39in a still image

01:47:40is one of the most

01:47:41common types of

01:47:42optical illusions.

01:47:43To create one,

01:47:44you have to build

01:47:45a pattern of

01:47:46high-contrast colors.

01:47:47They activate

01:47:48neural signals

01:47:49at the same time.

01:47:50This is how the

01:47:51fake motion effect

01:47:52appears.

01:47:53Cafe wall illusion

01:47:54was first described

01:47:55in the late 19th century.

01:47:58The tile pattern

01:47:59of a cafe wall

01:48:00had straight parallel lines

01:48:01and grout

01:48:02in between them.

01:48:04It seemed

01:48:05the black and white lines

01:48:06sloped diagonally.

01:48:07That's because

01:48:08different types of neurons

01:48:09in your brain

01:48:10react to dark

01:48:11and light colors.

01:48:12Some parts of the grout lines

01:48:14seem brighter than others.

01:48:16Where there's contrast,

01:48:17there appears to be

01:48:18asymmetry.

01:48:22You'll have 5 seconds

01:48:23for each.

01:48:24Let's go!

01:48:25What comes to your mind

01:48:26when you look at this picture?

01:48:36If you noticed

01:48:37one big tiger first,

01:48:38you're pretty happy

01:48:39with your life right now

01:48:40and wake up with a smile.

01:48:42You like your job

01:48:43and have some great friends

01:48:44and a loving family.

01:48:46You don't want to change anything

01:48:47and just enjoy every day.

01:48:50In case you spotted

01:48:51a landscape with a tree

01:48:52and a little tiger first,

01:48:54you've had some problems

01:48:55in the past

01:48:56that you've managed to solve.

01:48:57But now,

01:48:58you're cautious

01:48:59about everything

01:49:00and can't let yourself

01:49:01run around carefree.

01:49:04How about this one?

01:49:13If you saw

01:49:14a beautiful golden landscape

01:49:16with some waterfalls,

01:49:17you probably feel

01:49:18a bit bored at the moment.

01:49:20Everything seems to be fine,

01:49:22but you're missing

01:49:23some bright emotions

01:49:24and adventures.

01:49:25Start with the little things,

01:49:26cook a new meal,

01:49:27or buy some clothes

01:49:28you'd never wear before.

01:49:30If you saw a young girl

01:49:31here first,

01:49:32looks like you've been

01:49:33a bit overwhelmed lately.

01:49:35You're trying to be

01:49:36one step ahead

01:49:37of everyone else at work

01:49:38with your hobbies

01:49:39and personal life.

01:49:40It's okay to give yourself

01:49:42a break and just live your life

01:49:44at your own pace sometimes.

01:49:47In case the animals hiding

01:49:48in the landscape

01:49:49have caught your eye,

01:49:50you're pretty happy

01:49:51with everything in your life,

01:49:52but your mind often wanders

01:49:54somewhere else.

01:49:55You run different scenarios

01:49:56in your head of you

01:49:57living a different life

01:49:58that could be even better.

01:50:00Try doing one of the things

01:50:02you've been dreaming about

01:50:03for so long.

01:50:05Moving on,

01:50:06what does this one

01:50:07look like to you?

01:50:16If it's definitely a guitar,

01:50:18you're someone who likes

01:50:19to have a good laugh.

01:50:21Your positive energy

01:50:22spreads onto others easily.

01:50:23That's why you're the heart

01:50:25of any party.

01:50:26You mix with new people well

01:50:28and have like a billion friends.

01:50:30If you're positive

01:50:31it's a landscape

01:50:32with trees reflected

01:50:33in the water,

01:50:34you feel cautious

01:50:35about letting new people

01:50:36too close to you.

01:50:38You might seem reserved at first,

01:50:40but when you're ready

01:50:41to accept those new people

01:50:42into your life,

01:50:43you build strong bonds

01:50:45and will never let them down.

01:50:48How about this one?

01:50:58Those who see a huge

01:50:59yellow-eyed fish here

01:51:00respect the rules

01:51:01and feel uncomfortable

01:51:03breaking any of them.

01:51:04You prefer to stay

01:51:05out of trouble,

01:51:06so you'd never try

01:51:07anything unconventional.

01:51:09You follow the majority,

01:51:11and if something goes wrong,

01:51:12you're relieved

01:51:13to share the fault

01:51:14with everyone else.

01:51:16If you're one of those people

01:51:17who see a huge shift

01:51:18in this image,

01:51:19you never follow the crowd

01:51:21even if it's going

01:51:22the right way.

01:51:23You're a rebel at heart

01:51:24and you believe rules

01:51:25are meant to be broken.

01:51:27You like to take a chance

01:51:29and often win.

01:51:31Next, is this one

01:51:32all plain to you,

01:51:34or do you see the double meaning?

01:51:44Those who see a bunch of sheep

01:51:46and a wolf here

01:51:47adapt to changes in life easily.

01:51:49You accept the fact

01:51:50that nothing lasts forever,

01:51:52and always look

01:51:53on the bright side

01:51:54to find the positive in everything.

01:51:57This helps you move on

01:51:58and save your energy

01:51:59for more important things

01:52:00than worries.

01:52:02Those who see a big wolf

01:52:03and a little wolf

01:52:04find it uneasy

01:52:06letting go of people,

01:52:07places, and situations.

01:52:09You don't like change,

01:52:10it confuses you.

01:52:12Even if things aren't perfect,

01:52:13you'd rather leave them

01:52:14the way they are

01:52:16because you're used to them.

01:52:17Sometimes you just have

01:52:19to let things go their own way.

01:52:21It'll save you a lot of nerves.

01:52:23How about this one?

01:52:33If you see a polar bear here,

01:52:35you're an emotionally stable person.

01:52:37You know you can't plan everything in life,

01:52:40so you accept its surprises

01:52:41and find joy in them.

01:52:43You know you won't make fun memories

01:52:45if you stay on a perfectly smooth road.

01:52:48If you clearly see a hand in this image,

01:52:51you love to plan everything in your life.

01:52:53You can't stand it

01:52:54when something doesn't go

01:52:55as you expected it to.

01:52:57You always think

01:52:58of all the possible outcomes

01:53:00before taking even the smallest decision,

01:53:02like what to buy for dinner.

01:53:04Try being more spontaneous.

01:53:06You might like it.

01:53:07Now, taking it one level up,

01:53:10can you see the hidden meaning here?

01:53:20If this one looks like a lake

01:53:22and some swans to you,

01:53:23you're a realist

01:53:24who's mostly in a good mood.

01:53:27You don't expect too much

01:53:28from anything or anyone.

01:53:30You're kind and forgiving

01:53:31and can explain and accept any behavior.

01:53:34It helps you protect yourself

01:53:35from disappointments.

01:53:37If you saw a band playing in the mountains,

01:53:39you're more comfortable

01:53:41in the world of your own dreams

01:53:42than in reality.

01:53:44You have your vision

01:53:45of how things should work out,

01:53:47and you feel sad

01:53:48when other people aren't as brave,

01:53:50nice, and caring

01:53:51as you expect them to.

01:53:53Try taking it easier on them.

01:53:55How about this one?

01:54:05If the first thing you saw here

01:54:06was a vase,

01:54:07you don't like to stay

01:54:08in the spotlight.

01:54:09You're a talented and creative person,

01:54:12but you're a bit shy

01:54:13and don't like it

01:54:14when other people

01:54:15are staring at you.

01:54:16That's why you prefer

01:54:18to express yourself

01:54:19through writing, drawing,

01:54:20or similar arts

01:54:21that don't take you

01:54:22directly on stage.

01:54:24If you clearly saw

01:54:25two profiles in this one,

01:54:27you love attention so much

01:54:29you make a little show

01:54:30out of everything.

01:54:31You can make a loud joke

01:54:33or start singing

01:54:34as you go grocery shopping.

01:54:36You have plenty of energy,

01:54:37and the only way

01:54:38to let it all out

01:54:39is to get on stage

01:54:41and get all the eyes

01:54:42looking at you.

01:54:44This one looks pretty abstract.

01:54:46What do you think about it?

01:54:56Those who are sure

01:54:57it's an old man

01:54:58are really good

01:54:59at saving money.

01:55:00You plan your budget

01:55:01and never buy things

01:55:02you didn't plan to.

01:55:04You know your priorities well,

01:55:06and you don't feel like

01:55:07you're depriving yourself

01:55:08of anything.

01:55:10Saving makes you happy.

01:55:12Those who spotted

01:55:13a horse in this image

01:55:14are trying to stick

01:55:15to a budget,

01:55:16but it doesn't always work out.

01:55:18You could be saving

01:55:19for a new car

01:55:20for a couple of months,

01:55:21and then spend it all

01:55:22on the shoes of your dreams.

01:55:24What really matters

01:55:25is that it makes you happy,

01:55:27so don't worry too much about it.

01:55:30Moving on,

01:55:31what can you say about this drawing?

01:55:41If you saw an old man's profile

01:55:42here first,

01:55:43you believe that you can achieve

01:55:45anything in life

01:55:46if you give it your all.

01:55:48You're patient and stubborn

01:55:49in a good way.

01:55:50You set goals

01:55:51and fulfill them one by one

01:55:53on the way to your dream.

01:55:55You prefer to call it plans,

01:55:56not dreams.

01:55:58If you saw a man on a horse,

01:55:59a river,

01:56:00and a figure on the ground,

01:56:02you believe in destiny.

01:56:04You think lots of things

01:56:05are just meant to be.

01:56:07You aren't lazy or anything,

01:56:08but you're sure

01:56:09sometimes success

01:56:11is just a matter of luck.

01:56:13When you have an uneasy choice

01:56:14to make,

01:56:15you prefer to wait it out

01:56:16and let the problem solve itself.

01:56:20This one feels so cold.

01:56:22What do you see here?

01:56:32If it looks like a snowy mountain

01:56:33to you,

01:56:34comfort is your priority.

01:56:36Your home means the world to you,

01:56:38and you don't like to move

01:56:39from place to place.

01:56:41You can't focus on anything

01:56:42or get details done in a mess.

01:56:44You're ready to spend money

01:56:45and effort

01:56:46on nice little details.

01:56:48In case you saw a huge face first

01:56:50— and no, it's not me —

01:56:52you prefer to invest in memories

01:56:54and emotions.

01:56:55You'd love to sleep under the stars

01:56:58as long as it takes you to a new place

01:57:00with people you love.

01:57:01You don't buy too many things

01:57:03because they make moving problematic.

01:57:06All you really need

01:57:07fits in one backpack,

01:57:08and you're happy it's so.

01:57:11What comes to your mind

01:57:12when you look at this image?

01:57:21If it's definitely a zebra to you,

01:57:23you enjoy arranging surprises

01:57:25for your loved ones.

01:57:27You prefer giving to receiving,

01:57:29and you'd go to the end of the world

01:57:30to make your family and friends happy.

01:57:33Their happiness is the best feedback to you.

01:57:36If you see some trees here,

01:57:38looks like you prefer getting gifts

01:57:39to giving them to others.

01:57:41You never show it

01:57:42even if you aren't 100% happy with a gift,

01:57:45and it makes people feel like

01:57:46they know you so well,

01:57:48and they made your day.

01:57:50So you're doing a good thing your way.

01:58:03Look at the dot in the center for 10 seconds.

01:58:093, 2, 1.

01:58:15Now quickly look at the ceiling

01:58:16and blink a few times.

01:58:18The colored squares have just moved there.

01:58:20What a beautiful pattern of rectangles.

01:58:23But just give it a second look,

01:58:24and you'll see they are in fact

01:58:25circles floating against the striped background.

01:58:29Stare at the central dot for 10 seconds

01:58:31and see what happens.

01:58:42Wow, the colored circles switched places.

01:58:44In fact, they're both gray now,

01:58:46and your brain makes you see colors

01:58:48that aren't really there.

01:58:50This illusion can make your phone grow.

01:58:52Stare at it.

01:58:53Magic is happening.

01:58:55Keep staring.

01:58:56Now quickly look at the back of your phone.

01:58:58The logo is moving.

01:59:00How many colors do you see in this image?

01:59:03If you answered 3, you're a bit wrong.

01:59:05There are just two colors here,

01:59:07black and white.

01:59:08The grid creates the illusion of gray

01:59:10as they intersect.

01:59:12What about this one?

01:59:14There are just three colors here,

01:59:15red, blue, and yellow.

01:59:17The inner squares only seem different

01:59:19because of the grids and backgrounds.

01:59:21This grid is broken,

01:59:23but you can fix it right now.

01:59:25Stare at the center of the grid for 15 seconds

01:59:27and see what happens.

01:59:41Told ya!

01:59:42It all looks in order now.

01:59:44This happens because your brain prefers

01:59:45to see regular patterns.

01:59:47It's spread from the center

01:59:48to the edges of the grid.

01:59:50This image is perfectly static.

01:59:52Just stare at one part of it.

01:59:54Yep, it isn't moving anymore.

01:59:56This is one example of peripheral drift illusions.

01:59:59Your brain lags a bit when it's processing

02:00:01areas with different light intensity

02:00:03and makes you think the image is animated.

02:00:07Can you tell if this one is moving or static?

02:00:09I give you 10 seconds to figure it out.

02:00:20Static again.

02:00:22Contrasting colors create the illusion of motion.

02:00:25How many animals do you see here?

02:00:28There are 8 of them hiding between the lines.

02:00:31If you saw 5 or more,

02:00:32you'd have the eye of an eagle.

02:00:34Can you tell which of these two yellow lines is longer?

02:00:38It seems obvious the answer is the higher line.

02:00:40In fact, they're absolutely the same length.

02:00:43Your brain gets distracted by other elements of the image,

02:00:46like background lines,

02:00:48and you see the image in a distorted way.

02:00:51What about these two lines?

02:00:53Which one is longer?

02:00:55Again, they're the same length.

02:00:57The way circles are set makes the upper line seem longer to you.

02:01:01How many colors are mentioned here?

02:01:09If you got 7, great job!

02:01:11Nothing can distract you.

02:01:13Can you find the mistake here?

02:01:19The number sequence is alright,

02:01:21but you don't need an extra V.

02:01:24Let's go under the seat.

02:01:25Find 3 differences between these images in 10 seconds.

02:01:39Good job!

02:01:43Same task here.

02:01:49Did you spot them all?

02:01:51These images are different in 3 details.

02:01:54Can you name them?

02:02:00Fantastic!

02:02:04Oh, this looks delicious!

02:02:06Again, there are 3 differences between the images.

02:02:14Hope you found them all!

02:02:17These two images are different in 5 details.

02:02:20Try to name them in 10 seconds.

02:02:32Well done!

02:02:36Can you find 5 differences between these two?

02:02:40Well, nothing can hide from you.

02:02:45Help these kittens find 8 hidden objects.

02:02:59Meow, thank you!

02:03:03This dog is made of many little things.

02:03:05Can you name them?

02:03:10Can you spot 13 of them?

02:03:19Amazing!

02:03:23The fall is a busy time for farmers.

02:03:25Make their life easier and find 20 hidden objects they need.

02:03:29Wow, you could be a detective!

02:03:34Did you find 20 objects in this image?

02:03:36Feel free to pause the video if you need more time.

02:03:48Great job!

02:03:52Can you name 10 objects in this image?

02:03:59This time, you only have to find 12 hidden things,

02:04:02but it's trickier because of all those dots.

02:04:14You did it!

02:04:18Moving on!

02:04:20What you see in these optical illusions can tell a lot about your personality.

02:04:24What is this one to you?

02:04:26Those who clearly see the mountains covered with snow

02:04:29mostly have their feet on the ground.

02:04:31You take things the way they are,

02:04:33like to plan everything and move ahead step by step.

02:04:36If you spotted the horses first,

02:04:38you like to be ahead of everyone and live at full speed.

02:04:41You're rather impatient

02:04:43and get bored of tedious work that needs a lot of attention.

02:04:46Now, what catches your eye here?

02:04:49If it's a peaceful creek in the woods,

02:04:51you always see the big picture.

02:04:53You stay calm,

02:04:56even when everyone around you is losing it.

02:04:59You always know how to choose the right option out of many quickly.

02:05:03If it's a grumpy face to you,

02:05:05you tend to overthink things

02:05:07and see a catch in every situation and offer.

02:05:09You don't make friends easily,

02:05:11but when you do, it's forever.

02:05:13Time for the next illusion.

02:05:15Those who see a face here,

02:05:17you have a bright mind and you like to keep it busy.

02:05:20You're good at solving tasks of any difficulty,

02:05:23and you come up with the best ideas.

02:05:25Those who see a beautiful lady in a dress in this one,

02:05:28you're artists at heart.

02:05:30You take inspiration almost from anything and anywhere.

02:05:33You write, paint, sing, or create music,

02:05:36and it makes you happy.

02:05:38This one's pretty plain, or is it?

02:05:41If you see an owl landing,

02:05:43you're a great team player and easy to work with.

02:05:46You don't mind sharing credit for what you've done with others.

02:05:49Sometimes you're too afraid to speak up.

02:05:51Remember, your ideas are worth it.

02:05:55If it's a girl looking in the distance to you,

02:05:57you have amazing communication skills.

02:05:59You feel comfortable even in front of the crowd

02:06:02and like to share everything about your life on social media.

02:06:06How about this one?

02:06:08If it's a waterfall to you,

02:06:10you love travel and explore new places.

02:06:12You aren't afraid of anything, except for boredom.

02:06:15You always say yes to new adventures and places.

02:06:18If you see a young couple here,

02:06:20you're a true romantic.

02:06:22You believe that love always wins,

02:06:24and when someone's mean to you,

02:06:26you forgive them easily

02:06:28and try to find an explanation for what they did.

02:06:30What are your thoughts on this image?

02:06:32If it's a person standing alone on a rock to you,

02:06:35you're mostly an introvert.

02:06:37You need your alone time

02:06:39to bring your thoughts in order and recharge.

02:06:41You don't have many friends,

02:06:43but you're loyal to them.

02:06:45If it's a face of a girl to you,

02:06:47you often live in the world of your dreams.

02:06:49You always try to improve your life

02:06:51and sometimes forget to see the good in everyday life.

02:06:53Try seizing the day every once in a while.

02:06:56What does this one look like to you?

02:06:58If it's a pattern of trees,

02:07:00you aren't afraid to tell the truth,

02:07:02no matter what it is.

02:07:04You have a point on anything,

02:07:06and it's not easy to make you change your mind.

02:07:08Sometimes it's okay to ask others for advice

02:07:10and follow it.

02:07:12If you see a girl with her back to you,

02:07:14you're afraid to hurt the feelings of others.

02:07:16You try to avoid conflict by all means,

02:07:18and sometimes agree with others

02:07:20just to make them feel better.

02:07:23What animal do you see first

02:07:25in this curious pattern?

02:07:27If the giraffe is the first animal you saw,

02:07:29you're funny, influential,

02:07:31and charismatic.

02:07:33You're spontaneous

02:07:35and always full of energy.

02:07:37That's why you have plenty of friends.

02:07:39You can convince anyone of anything.

02:07:41Use this talent wisely.

02:07:43If you spotted the cat first,

02:07:45you don't like talking a lot

02:07:47and prefer to watch from a distance

02:07:49and analyze what you see.

02:07:51So you make your own rules

02:07:53and follow them.

02:07:55If you saw the duck first,

02:07:57you are a 100% optimist.

02:07:59You enjoy every moment

02:08:01and enjoy looking on the bright side of life.

02:08:03You enjoy exploring new places,

02:08:05learning new skills,

02:08:07and your curiosity has absolutely

02:08:09no limits.

02:08:11If the elephant has caught your eye first,

02:08:13you are loyal and genuine.

02:08:15You care deeply about everything

02:08:17and everyone around you.

02:08:20People can always ask you for help

02:08:22and you'll solve any problem.

02:08:24In case you noticed the bear first,

02:08:26you're logical and conservative.

02:08:28You have your own values

02:08:30and you like to live by the rules.

02:08:32You're thoughtful and observant

02:08:34and aim for harmony.

02:08:36Those who paid attention to the rabbit,

02:08:38you're full of energy and spread joy

02:08:40like no other person.

02:08:42You've a great sense of humor

02:08:44and rich imagination.

02:08:46You like to share that happiness with others

02:08:48In case the lion was the first animal you saw,

02:08:50you're a leader by nature.

02:08:52You like setting goals and achieving them

02:08:54no matter how hard it gets.

02:08:56People gladly follow you

02:08:58because you're always 100% positive

02:09:00of your success.

02:09:02And if you saw an octopus,

02:09:04an optometrist is in your future

02:09:06because there's no octopus there.

02:09:08Time for an eye test.

02:09:10Just joking with you.

02:09:14That's it for today.

02:09:16If you pacified your curiosity,

02:09:18then give the video a like

02:09:20and share it with your friends.

02:09:22Or if you want more,

02:09:24just click on these videos

02:09:26and stay on the Bright Side!

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