“Conceptually, it is a self-defeating notion—something that if taken to be truth, negates itself. In fact, if, say, simulated water might be a meaningful notion, what would it be made of? It could not be made of real stuff, because if it was, it would no longer be simulated water. However, neither could it be made of simulated stuff, because—that’s the point of being a simulation—there is no such thing as simulated stuff. All we know is physical. All we know belongs, once again, to base reality. Either way, simulated water cannot exist.”

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