I believe the reference was to the needed speed to escape a black hole: The escape velocity of a particle must exceed the speed of light. And it's because of this particular character of the black hole that it remains black. Even light cannot exceed C.
Actually, we don't know why the speed of light is what it is, nor why it is constant.
I believe the reference was to the needed speed to escape a black hole: The escape velocity of a particle must exceed the speed of light. And it's because of this particular character of the black hole that it remains black. Even light cannot exceed C.
Hawking showed, of course, that black holes disintegrate over time, until all mass is lost, due to the "Hawking radiation". This imples that particles do exceed the speed of light in the special case of black holes.
Hawking showed, of course, that black holes disintegrate over time, until all mass is lost, due to the "Hawking radiation". This imples that particles do exceed the speed of light in the special case of black holes.