Are we living in a computer simulation?

In the article, "Are we living in a computer simulation" many researchers discuss that they believe that there is a 50 percent chance that we are living our life In a simulation and we are in a big game. They believe that our life isn't real, because we are all part of this game. I think the world is real and isn't part of a huge game because of the quote "Cogito Ergo Sum" by Renè Descartes. That means "I think, therefore I am." We think a lot and the fact that we are able to think about the fact that are we human or a simulation that means that we are real and not a simulation. That is because if we were a simulation we would do whatever whoever is controlling us makes us do. And we wouldn't be able to think the way a human does if someone was controlling us and telling us what to do. That is why I believe we aren't living in a computer simulation and that our world is real.