Comment Re:Hypothetical question (Score 1) 26
My thought experiment is, what if two black holes were approaching each other very rapidly on a not-quite-collision course, so that the sides of their event horizons briefly overlapped as they passed. Would they stick together?
ISTM that if anything was inside the overlapping area they'd have to stick, since otherwise that thing would be escaping from one of them. But is there anything there? Maybe something that just now fell in and hasn't had time to fall to the center? Or, is there quantum foam inside a black hole, and if so, would that count as "something" that would force the black holes to stick?