The part where "is this a simulation" becomes an uninteresting question is when you ask "Does it matter?". Would answering the question of whether we're in a si

The part where "is this a simulation" becomes an uninteresting question is when you ask "Does it matter?". Would answering the question of whether we're in a simulation have any impact on your behavior, thoughts, and actions? Probably not. So what does it matter? About the simulation hypothesis in particular, there are still some interesting conversations to be had. For example, you could go into detail about the properties you might observe if the universe was a simulation. Or you could attack it from the other direction, attempting to predict the kind of technology you'd need in order to create a simulation. Feynman thought this question important enough to study in detail. "Simulating Physics with Computers": https://people.eecs.berkeley.edu/~christos/classics/Feynman.pdf https://people.eecs.berkeley.edu/~christos/classics/Feynman.... It probably wouldn't change anything to realize that we're in a simulation, but it would open up all sorts of possibilities. We'd be a step closer to defining the reason for existence. We'd be inspired to create our own simulations of other universes, once we know it's possible. Or at least we'd settle the question of whether we, being a simulation, would be able to simulate yet more universes. After all, if we know we're in a simulation, we'd have an idea of the sort of properties necessary to be able to simulate a universe.