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The Importance of Holography in Theory
Holography has been the talk of the town in theoretical physics for 25 years, right? Yeah. It's been mostly practiced in highly idealized abstract, non-realistic mathematical situations that have nothing to do with ours. But there's a general lesson behind holography, which is we're finding out how quantum theory and gravity can finally work together more or less harmoniously. The clearest example perhaps is the case of a black hole. We've seen images of a black holes. That's all very nice. And a black hole is something very gravitation. I did the space time is curved, highly curved. Einstein says there is a surface, there is a horizon