218 | Raphael Bousso on Black Holes and the Holographic Universe

Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas

Sean Carroll | Wondery

Society & Culture, Physics, Philosophy, Science, Ideas, Society

4.8 • 4.4K Ratings

🗓️ 21 November 2022

⏱️ 82 minutes

🔗️ Recording | iTunes | RSS

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Summary

Stephen Hawking’s discoveries of black hole radiation, entropy, and the information-loss problem have both taught us an enormous amount about the relationship between quantum mechanics and gravity, and also left us with some knotty puzzles. One major insight is the holographic principle: the information describing a black hole can be thought of as living on the event horizon (the two-dimensional boundary of the hole), rather than distributed throughout its volume, as normal physics would lead us to expect. Raphael Bousso has made important contributions to our understanding of holography and its implications. We talk about the modern point of view of how gravity relates to quantum mechanics.

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Raphael Bousso received his Ph.D. in physics from Cambridge University, where his advisor was Stephen Hawking. He is currently a professor of physics at UC Berkeley. He has made pioneering contributions to our understanding of black hole information, the holographic principle, the string theory landscape, and multiverse cosmology.

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Transcript

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0:00.0	Whether it's a team reinventing the electric motorbike,
0:03.0	the sound of what this place is looks like it should be in front.
0:05.6	Or a company making a vest that allows you to feel the virtual world.
0:09.8	Right now we have wind, now it's hailing.
0:13.8	Uh-oh, now it looks like it's going to be fireballs.
0:16.8	The third angle podcast introduces you to the brilliant minds
0:20.0	behind some of the world's most unique feats of engineering.
0:23.6	I'm your host Paul Hames from PTC.
0:26.0	The third angle is out now on your favourite podcast app.
0:29.8	Hello everyone, welcome to the Mindscape podcast.
0:32.4	I'm your host Sean Carroll.
0:34.4	We talk a lot about physics on the show and if you asked people
0:37.8	on the street what physics studies, you might hear something
0:41.8	about matter and energy moving through space and time or space
0:46.8	time if they had been introduced to relativity just a little bit.
0:49.8	Modern quantum mechanics and gravity are coming together
0:53.8	to suggest that this space time idea is not as fundamental
0:58.8	as we thought.
0:59.8	The reason why you think it's so fundamental there's many reasons.
1:02.4	But one is that things interact with each other when they bump into each other
1:07.4	at the same point in space.
1:09.4	This is basically locality.
	...

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