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If gravity is a particle... How come it can escape a black hole? ๐ค
(interestingengineering.com)
A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. A showerthought should offer a unique perspective on an ordinary part of life.
If that was the case, we would already have a quantum theory of gravity. The fact that "gravitons" (here I mean the particles of a second quantisation of GR) can interact with themselves makes the theory almost completely useless.
It's technically possible to write down such a theory, but the only way to get results out of it is to first perform an infinite number of experiments.