Is it true that if there is a photon with a wavelength that could fit in a box that is equal to or smaller than the Planck length, then it forms a black-hole? Originally I thought, since a Planck length isn't about the length but the point at which physics will produce weird numbers, that it doesn't make sense.
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2Why don't you do the math? – my2cts Dec 13 '23 at 09:37
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There are no photons in General Relativity and no black holes in the Quantum Field Theory. – safesphere Dec 16 '23 at 00:48