Is There a Relationship Between Space Time and Reality?

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There's this question of what exists and how we should think about the world. And I think it's very natural for most people to think of space and stuff in it as existing. But quantum gravity seems to be a bit more subtle than that. The ADSCFT correspondence is saying there's two totally different ways of talking, which put stuff and space on very different footings.

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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