Unlikely to run a simulation this big. Let’s say say they have the infinite computing power. They would need infinite dyson speheres around the sun which is kinda like a solar panel around the sun just more advanced. Let’s say they have great engineering they manage to create a system which turns off stuff kinda like games but way more advanced if no one is looking , every human has a conscious it’s hard to simulate that in a virtual world . Let’s say they created the perfect engineering marvel . They still need energy of 2 or 3 suns at least and a power transportation system beetween solar systems . That’s a type 3 civilization we are 100 thousands years away from that if that s even possible. Now an advanced civilization like this could simulate us but there s also a moral code . They are advanced a god like power for us so they have to consider this as well . And why would they even simulate us , not for a game that’s for sure because it’s still way to much power. Maybe to create a scientific experience. It’s possible but I m not a believer in this theory