Expanding on previous:
I think questions as to whether the Universe is a simulation is interesting, but ultimately meaningless. Even if a simulation, it's as good as real to us, and at that point, simulation and reality become indistinguishable. It may be bits in someone else's computer (I don't think it is), but that doesn't make a bit of difference on the inside.
Speaking of which, I think that what we perceive as the Big Bang is someone else's black hole. Most of the time. Other times I entertain other thoughts about the origin and fate of the universe. Most of it is probably poorly formulated. I am after all way better educated in biology than physics, but when did a layman's understanding of physics ever get in the way of tasty, tasty woo, amirite? Don't worry, I won't ever being up quantumz. I don't see anything especially meaningful about stairs on a staircase other than that's just how stairs are put together. (An analogy to make LMNO grumble, perhaps)