PBS Space Time

Why Quantum Information is Never Destroyed

Season 4 Episode 25 | 10m 6s | Video has closed captioning.

If you have perfect knowledge of every single particle in the universe, can you use the laws of physics to rewind all the way back to the Big Bang? Is the entire history of the universe perfectly knowable? Or has information somehow lost along the way?

Aired: 08/29/18

Rating: NR

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Problems Playing Video? | Closed Captioning