Thanks! With respect to the simulation idea, it leads to the question, if you can't tell the difference (and it isn't possible to make a testable prediction) then does it matter one way or the other if it is real or a simulation?
I know there are some ideas that link the blockiness of quantum mechanics to the blockiness of computer storage, this pointing out that this could be proof of simulation. However, I prefer (at the moment, given the current evidence) to see it as proof of blockiness of the universe (or an as yet misunderstood element of a deeper theory of which quantum is an approximation of).