Do other universes even exist?
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00:00Mankind has long looked towards the cosmos in search of life elsewhere in the universe,
00:08but now experts say we might be thinking about the whole thing all wrong.
00:12While space travel may have been impossible for the generations that came before us, multiverse
00:16theory has become a theoretical, albeit possible, endeavor now.
00:20Astrophysicist Geraint Lewis writes for The Conversation,
00:22The basic premise is that new universes crystallize out of the Big Bang expansion, each verse
00:27in this multiverse possibly even having its own laws of physics.
00:30Now they say, what if our search for life didn't look vertically up to the stars, but
00:34rather horizontally to these parallel multiverses?
00:37Well according to Lewis, that means we have to break down the fundamentals of what life
00:41needs.
00:42We know we need water and oxygen to survive, but when breaking that down to the fundamentals,
00:46that means we basically need to be within a particular proximity of a star.
00:49All elements we need come from that source, but that source needs massive amounts of gravity
00:53to produce extreme temperatures, and densities for star formation.
00:57Electromagnetism is a force then required to ignite a star in a nuclear reaction.
01:01Now experts need to figure out which theoretical universes could not only exist, but which
01:05ones might be habitable, allowing humanity to perhaps find life, or even a new place,
01:10for us to live.