Do you live in a simulation?
Simulation: The act or process of pretending.
Yes, most do live in a simulation.
To know if we live in a simulation we first have to have some knowledge of what a simulation is. This idea today comes to us in popular theories, books, and movies. I do know that we all have different choices and these depend upon what society we live in. This fact alone limits "free will" which is another illusion.
The real question is: Do you believe the simulation is reality? Even when reality is staring you in the face.