I have some difficulty understanding how a black hole can have both size and mass. Inside a black hole, space is infinitely warped and matter crushed into oblivion. Thus, if there is no space inside a black hole, what exactly separates the event horizon, or the black hole external boundary, from the singularity, or the black hole center? In other words, how can there be a distance where there is no space? Then, if there is no matter inside a black hole, where does its mass come from? Mass is only an attribute of matter, it doesn't exist by itself. So if a black hole has a mass, what is this mass attached to? And by the way, if there is a Higgs field, having mass inside a black hole would mean that the Higgs field continues to operate inside this nothingness...?