I heard about a theory that our universe may exist inside a black hole, and I was wondering if someone could help explain this to me. My teacher didn't say much about it but just from thinking I can gather that since a supermassive black hole's immense gravity can distort spacetime, so an entire universe could fit inside. But what I don't get is how a universe could possibly get INSIDE the black hole in the first place. Does the black hole condense enought matter into so small of a space that when the gravity of the black hole ceases to act on the matter, it expands, giving us the Big Bang? Just need an explanation because this has really been bothering me.
