Well I don't understand how one can accept this argument. I mean if you believe in mind-body dualism it can make sense. But AFAIK Searle doesn't, instead he holds that there's something special about the brain biology that enables consciousness and that you won't find in a computer. I don't see why that would be the case if the computer can simulate the real world, and I find Searle's argument against simulation, that simulating rain doesn't make you wet, falls flat: it can make things wet in simulation, and if you connect it to sprinklers it will make you wet.