Theoretically there is no reason to assume that simulating the entire universe down to quantum level as we understand it is infeasible. Perhaps the laws of phys

Theoretically there is no reason to assume that simulating the entire universe down to quantum level as we understand it is infeasible. Perhaps the laws of physics and nature are different in the 'real' world which allows the existence of a system that can simulate our universe. There is no reason to assume that physics in our universe operate in the same way as physics in the 'real' universe, if our universe turned out to be a simulated one. The physics in a simple simulation game like Minecraft is consistent from the perspective of inhabitants of that world. And although Minecraft is Turing complete, from the perspective of inhabitants of that world, it would seem equally impossible to simulate their entire universe from the tools available within the game. Analogous to how Minecraft is a simulation with a simplified model of our physics, our world could be a simulation with a simplified model of 'real' physics. There is no way to ever find out if this is the case. To me the interesting part of this is that regardless if we are simulated or not, it doesn't make our lives any less 'real'. Suppose we all lived in a simulation, would that matter? We still think, feel, and operate in the same way. It's not like The Truman Show where if we figure it out we get to escape to the larger world. Would knowing that all this is a simulation change the way you behave? Would you be more reckless, or more careless towards others? Any pain we inflict, on ourselves or others, still has the same effect. I don't see how it changes anything.