Re: Simluator
It would work like that because math was invented to describe the universe that we form part of in the best way possible.
So of course the universe is going to be able to be described by maths, otherwise we would have to invent maths 2.0.
While I disagree with the "you cannot simulate it", I think that a good enough simulation would be as good as a non simulated one, so why bother? Anyway we will figure it out eventually, and I think this is not a very interesting question to make.