Ok, these may be silly questions, but when learning new things I figure you won't know if you don't ask. So here goes: 1. When a star goes supernova and the core collapses into a neutron star, the new star spins fast to conserve angular momentum (I think) and it rotates rapidly. Well if that star is sufficently massive to continue its collapse into a BH, does the rotation increase as well? And wouldn't that mean that the BH created would rotate at an extreme rate almost approaching c? Or is it that the warping of space around the BH is such that the meaning of "rotation" is not applicable any longer? 2. Would all BHs be the same "size"? If they all collapse into a point of zero dimensions, it shouldn't matter how much mass is in it because zero dimensions is zero dimensions. The only difference of effect would be the remaining gravitational pull of the mass that originally created the BH.