Is Our World Real?

Today  in class we talked about the simulation theory. This says that we are all living in someone else's or a higher power's universe.  A recent article in scientific America says that there is a 50-50 chance that this is true. So really, we could just be controlled by something else out there. The possibilities are endless. We also  talked about how this relates to our old testament unit that we are studying.  In the Tower of Babel once the people have someone over ridden God he sets the back and confuses their language. Is it possible that when we make a technological advance one day that can prove this theory we will be set back. So what do you think is our world real?