Remember the Bostrom argument from 2003? He argued that since technologies of simulation increase without limit, the only reason we would not be living in a higher power's simulation right now would be if that higher power simply did not enjoy making simulations. It's one of those asymptotic arguments - carry a thought out to infinity and the probability of something weird goes to 1. Do I understand it? Nah. But physicists in Germany argue that with current technology we should be able to detect whether this existence is a simulation - because of the physics of simulation. Do I understand that? Nah. But it is fun to think about.