Comment Re:Linearization (Score 1) 553
yes, I've long wondered about that. If gravity travels at c, as light does, how does it escape from a black hole? How does a black hole have any detectable gravitation of any sort? I believe the black hole traps light, not because light bends to gravity, but because light travels straight through space, and gravity has bent space. Hence the light, traveling away, turns back in from our point of view. What then is the geometry of the propagation of gravity beyond the event horizon?