The amazing power of crop circles

Crop Circles just magnificent signs of man made art or could they be something more? For many people Crop circles are both. ( From Wikiedia) "a 2000 study into circle hoaxing concluded that 80 percent of UK circles were definitely man-mad"
So what about the so called 20% that just defy the skeptics with their complex geometric patterns that seam hold hidden meanings and some even mathematics designs that few can read let alone completely understand.....