  I show that if mental states are function of physical states, then they are
nonlocal, in a sense that will be explained. I argue that, if mental states are
reducible to brain physics, and if they are integrated experiences, this
nonlocality implies that Classical Physics is not enough, in particular the
computationalist thesis does not hold. I illustrate the argument with a thought
experiment. The proof of nonlocality is straightforward and general, but the
result is counterintuitive, so I spend a large part of the article discussing
possible objections, alternatives, and implications. I discuss the possibility
that Quantum Physics allows this kind of nonlocality.
