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222 | Andrew Strominger on Quantum Gravity and the Real World
Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas
A Space Time in Geometry - The Kerr CFT Correlation
The Kerr CFT correspondence is the idea that rather than looking at a whole cosmology, we can think about individual black holes and relate them to a dual quantum field theory. We found simpler and simpler ways of doing the calculation until finally we realized that there was only one thing that mattered. That's what we call an emergent symmetry. Sometimes there can be regions of spacetime in which these occur all over the place.
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