The Black Hole Entropy Enigma
PBS Space Time

The Black Hole Entropy Enigma

B1IntermediateOctober 24, 202615 min
  • Science

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entropy in the universe.

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0:00

Thanks to CuriosityStream for supporting PBS Digital Studios. Black holes seem like they should have no entropy, but in fact they hold most of the entropy in the universe. Let's figure this out.

0:20

At first it seemed that black holes were so simple they should have no entropy. Well, it turns out they contain most of the entropy in the universe. Let's see why, because this fact may force us to conclude that the universe is a hologram. Black holes are a problem.

0:36

They are the inevitable result of extreme gravitational collapse. At least they are inevitable according to the equations of Einstein's general theory of relativity. That theory is one of the most thoroughly tested in all of physics, which means we

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