[baddox]

I've never read any explanation of the Universe-as-a-simulation concept that I have understood. If the Universe isn't a simulation, then what is it?

[scott_s]

I don't know - but answering a question with "I don't know" does not imply that we should pick an answer just because we don't have a good answer.

[baddox]

I think it's pretty important to convey or at least have a clear definition of the concept of the Universe being a simulation.