In article , Jos Bergervoet
writes:

But if everything is in one big black hole, and the black hole
would need only mass and angular momentum and charge to describe
it, then that would be extremely low entropy (and essentially we
would have back the "ordinary" behavior you described first).

The first clause doesn't really make sense, since if "everything"
(presumably meaning all matter in the universe) were "in one big black
hole", this would have to be something different than what is normally
thought of as a black hole, e.g. a static solution in a background of
Minkowski space.