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Brian Greene:
Is our universe the only universe?

TED2012 · 21:47 · Filmed Feb 2012
Subtitles available in 31 languages
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Brian Greene: Is our universe the only universe?
21:47 · Filmed February 2012 at TED2012 · Subtitles available in 31 languages

Is there more than one universe? In this visually rich, action-packed talk, Brian Greene shows how the unanswered questions of physics (starting with a big one: What caused the Big Bang?) have led to the theory that our own universe is just one of many in the "multiverse."

Physicist
Brian Greene is perhaps the best-known proponent of superstring theory, the idea that minuscule strands of energy vibrating in a higher dimensional space-time create every particle and force in the universe. Full bio
This talk was presented at an official TED conference, and was featured by our editors on the home page.

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