That's one of the points I'm making in the thread nearer the top of the space board. From outside, the black hole seems to stay small, or grow very very slowly. Things look the way we are accustomed to. But from inside the black hole the outside universe is hyper-aging. Furthermore the event horizon is expanding very fast and swallowing everything in the entire universe. All because the rates of time are so different.

Even within the event horizon there is a huge variation in the rate of time and the amount of length contraction. Any matter that is already inside is pulled deeper into the gravity well, and crushed infinitely. But any matter that is pulled in after that would be infinitely delayed near the event horizon, forming an increasingly massive spherical shell. As mass increases the black hole gets bigger the space inside flattens again and cools, behaving like a Big Bang universe. The question on my mind is, could the cosmic microwave background we see in our sky have been left behind by the expanding plasma from the interior of a black hole with only, say, 10 or 15 solar masses?

I'm probably out on a limb, but I'm having fun anyway.