I’m pretty skeptical that we’ll have actual convincing simulations of human brains any time soon. We’re still in the phase of trying to figure out how mice decide to turn left or right in a maze. Not to mention that the ethical/allowed ways of collecting human neural data are incredibly coarse especially the most common forms like fMRI or EEG (maybe some BCI will improve this but it’s still pretty rough technology). Most of our data as well is collected in incredibly controlled conditions (even “naturalistic” stimuli) so the data we operate on is still not particularly indicative of how people act in the real world. Maybe you mean simulations of a “mind” which behaves like people even if it’s not particularly accurate to the brain? What did you mean by this?