Given two equally massive black holes moving at 99% of light speed, it seems there would clearly be enough energy for most (99%?) of the mass of both to be ejected and / or radiated well beyond the event horizon of their combined mass.
This got me to thinking about a different possible past and future of the universe than the idea that the Big Bang just randomly happened to start out if a singularity, etc., and compared to the idea of an eternal "heat death".
I imagine a scenario where the universe expands until all the expanding energy runs out, and all the mass has coalesced into a few extremely massive black holes, and at this point they're accelerating toward each other. When they reach each other, they're moving at near light speed. When they collide, wouldn't the mass be redistributed as equally as it was during the last Big Bang? After all, there wouldn't be any more or less energy at that point than there is now, so what's to say this couldn't happen over and over again?