Sorry, I suppose people haven’t heard of the “Simulation hypothesis” in philosophy.
Nick Bostrom argued that, statistically, it is more likely that we live in a simulation than not. Assume that an advanced civilization could build a machine with enormous computing power, sufficient to simulate a human mind and a universe “around” it. It follows that the number of such simulated minds/universes could be near infinite. So the probability of our actually being in a simulated universe dwarfs the probability that our reality is not a simulation.