There's no particular reason to believe the singularity in the math describing black holes has physical existence. Lots of equations have singularities and usua

There's no particular reason to believe the singularity in the math describing black holes has physical existence. Lots of equations have singularities and usually it just means that you're using them outside the domain in which they're defined. Maybe some heretofore unknown force kicks in and keeps the material inside the black hole from forming a singularity. Maybe they're actually fuzzballs: https://en.wikipedia.org/wiki/Fuzzball_(string_theory) https://en.wikipedia.org/wiki/Fuzzball_(string_theory) You don't really have to have a fully worked-out explanation of why the black hole singularities aren't physical- nobody can see inside the black hole, so all we can say is that the existence of black holes is consistent with there being a physical singularity in the middle. But really anything could be happening in there, we just don't know. The singularity the GR predicts is arguably evidence against GR holding at the center of the black hole; there's very probably something else going on.