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PBS Space Time
The Holographic Universe Explained
Season 5
Episode 18
We live in a universe with 3 dimensions of space and one of time. Up, down, left, right, forward, back, past, future. 3+1 dimensions. Or so our primitive Pleistocene-evolved brains find it useful to believe. And we cling to this intuition, even as physics shows us that this view of reality may be only a very narrow perception.
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Does quantum mechanics allow the future to retroactively influence the past or not?
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Life on mars could result in humanity’s destruction via Fermi Paradox.
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One of the most important reasons we go to space is to know our own planet better.
16:18
Is there evidence for the existence of an enormous number of other universes?
