>>13369175If you have arbitrarily great computing resources you can construct a simulation of the universe. Given that this is possible and that a simulation of the universe should itself be able to generate enough computing power to create a simulated universe, there is a probability that there are an infinite number of simulated universes in existence. In that case, the probability that we inhabit the one true universe approaches zero. Therefore, we probably live in a simulation...
Some people take this exercise seriously enough to think long and hard about how one might detect whether one is living in such a simulation.
