That’s the big question. No one really knows and why physicists inch ever closer to answering it through experimentation. We may never know, but chasing the mystery is really cool anyway. Whatever the answer is there’s some really interesting things for us to learn. 

My belief that we live in a simulation is just that, a belief. I don’t claim any knowledge or insight that it’s true. It’s the only way I can zero out what we know so far in my mind. A lot of folks go to god to zero it. And maybe that’s not mutually exclusive with the simulation hypothesis. I just don’t believe in a personal god.