" Philosopher Nick Bostrom takes things one step further by asking whether we are a “real” species or a simulation created by an intelligent civilization that came before. This idea comes from the simple fact that we will someday be able to create software simulations that believe they are real creatures. And when we achieve that level of technical proficiency, we’re unlikely to stop with one simulation of that type. In the long run, you could expect far more simulated realities than the real one that started it all. So the math of it says we are far more likely to be a simulation than an original species. The interesting thing here is that neither the real species nor the simulations would be in a position to know which one they are. "

― , Win Bigly: Persuasion in a World Where Facts Don't Matter