Being alone in an infinitely big universe is more scary than being surrounded by a less than infinite amount of alien species.,(reply>), That would absolutely confirm anything I'd consider a simulation as reality. Pretty chilling to think about - everything would have been made for you to exist. What happens when we're gone? Is the application terminated? A deep dive into the fabric of reality is about the most alien-like feeling you can experience. There is almost a silent horror behind the deep truth, though I don't think we could even comprehend it.