> In other words: you don't need to simulate any physics to prevent a mind from differentiating. But if your simulator is not simulating physics... what is it

> In other words: you don't need to simulate any physics to prevent a mind from differentiating. But if your simulator is not simulating physics... what is it simulating? The mind? If you are simulating a human brain, that IS a physics simulation, and it is probably on the harder side of the scale, so we cannot readily assume it's going to be easy or fast. And if you are running some different kind of mind based on an abstract neural network or something like that, well, it's not a simulated mind, it's just a mind.