It's not the rate of gravitational collapse you have to beat, it's the speed of light. Although I guess that makes sense. After all it's spacetime, not space.

It's not the rate of gravitational collapse you have to beat, it's the speed of light. Although I guess that makes sense. After all it's spacetime, not space. So if the expansion rate is higher than the speed of light, then you don't have the black hole problem.