1) When small black holes merge I suppose some of the very dense staff in between is in a "weak" gravity field (both huge gravity fields get substracted from each other when they spin arroun to merge), so it probably inflates toward more traditional material, so a sort of explosion probably partly responsible for the enrgy fields the melting send away.
2) If the melting result get suddenly a critical mass that even gravity could not escape we may have an external layer exploding or folding on itself because not attracted by the center anymore! And many other strange phenomenons, by definition It could not grow bigger, because anything coliding would push the equivakent mass outside, passing the no gravity layer and exploding back to something more like standard matterial so the outer layer of the huge black hole could process this transformation in a way allowing the exedent mass of the original black hole coliision to explose back visibly into space, plasma again, we may have a new big bang from a huge black hole!
Recycling materials for an infnite time in an infinite space.
Edited by Hiker, 16 March 2014 - 03:52 AM.