Every mass has a Shwarzchild's radius. Once the mass is compressed down to its Shwarzchild's radius, does it necessarily turn into a gravitational singularity, or does it just trap light from leaving? In other words, do all black holes have a gravitational singularity? and do all black holes violate the pauli exclusion principle? And what magnitudes of forces are needed to actually squeeze matter together to an infinite density violating the pauli exclusion principle? Sorry for lots of questions, I am just dying to know.