If all black holes are made up of an infinitely small point with infinite density, why are there “big” black holes and “small” black holes?

Question

If all black holes are made up of an infinitely small point with infinite density, why are there “big” black holes and “small” black holes?

In: 2

Answer 1

An infinitely small point of infinite density can still have some finite amount of mass.

More mass makes for a larger event horizon – a larger region of space that is inescapable due to the presence of the black hole.