To put my cards on the table: I don’t know whether we’re in a virtual world or not. I don’t think you know, either. In fact, I don’t think we can ever know whether or not we’re in a virtual world. In principle, we could confirm that we are in a virtual world—for example, the simulators could choose to reveal themselves to us and show us how the simulation works. But if we’re not in a virtual world, we’ll never know that for sure.
