I've always found the idea of the universe being a simulation rather silly. There are estimated to be 10^80 particles in the observable universe. Assuming our

I've always found the idea of the universe being a simulation rather silly. There are estimated to be 10^80 particles in the observable universe. Assuming our universe is being simulated on an earth sized computer (this is mind bogglingly ridiculous to me) and that the simulation meets Bremermann's limit (also ridiculous, since we're 40 orders of magnitude away according to this http://arxiv.org/pdf/quant-ph/9908043v3.pdf http://arxiv.org/pdf/quant-ph/9908043v3.pdf), then it would take on the order of a whole earth day to simulate a single time step. Of course, perhaps the host universe doesn't have the same limitations. Such speculation seems pointless. Maybe solipsism is true. Maybe the simulation runs on magical fairy dust.