I spend a lot of time wandering about the internet looking at things about rationality. There is a delightfully kooky bunch of people out there who talk a lot about right ways of thinking, while simultaneously talking about how we are all probably computer simulations.
I am not sure why anyone would want to simulate, say, Darfur, until I look at the kinds of things people who play the sims do. While some would be horrified at the idea that a computer simulation would be sentient and feel pain, a lot would be all “meh, they ain’t real”. That being said if we were a simulation there would be evidence of that, for example an arbitrary maximum speed things can move, a minimum distance and time unit, a lowest possible temperature and so on.