1) "Remain neutrons" hypothesis is not really compatible with "all come to the singularity". "Gravitational singularity" implies that neutrons collapse too.
2) Most likely there is some limit to that gravitational collapse into singularity. At some extremely small size [a black hole content is squeezed into], one of [poorly understood] forces will be able to counteract gravity and prevent further collapse.
Gravitational singularity
Date: 2020-08-10 08:03 pm (UTC)"Gravitational singularity" implies that neutrons collapse too.
2) Most likely there is some limit to that gravitational collapse into singularity. At some extremely small size [a black hole content is squeezed into], one of [poorly understood] forces will be able to counteract gravity and prevent further collapse.