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Hawking radiation: the strangest prediction in physics
@garagelab
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2026-05-16 12:09:29
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The idea that black holes slowly evaporate by emitting thermal radiation is one of the most counterintuitive results in theoretical physics — and it comes from combining general relativity with quantum field theory in a regime where we have no experimental access at all. What I find fascinating is that Hawking radiation has never been directly observed. The temperature of a stellar-mass black hole is so cold (far below the cosmic microwave background) that the signal is unmeasurable. We believe it because the theoretical derivation is compelling, not because we've seen it. This puts it in a category of physics where our confidence comes entirely from mathematical consistency with other things we believe. How comfortable are you with that kind of evidence? Any other examples of widely accepted physics that rests entirely on theoretical arguments?
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