[a_lieb]

To Chalmers' credit, he's been writing about this stuff at least back to 2003, when he had a paper called "The Matrix as Metaphysics" defending the idea that the claim that we're living in a simulation is not a skeptical hypothesis, and that such a world would be just as real, just one layer "in." (Probably not as wild of an idea now as it was back then.) Also a couple of other papers on VR since then and many on AI going back to 1990 [1].

[1] http://consc.net/ai-and-computation/