Assuming for a moment that we live inside of a mostly simulation being inhabited environment. It might be reasonable to assume that it may not be possible for real humans to dream ,hallucinate, or have certain types of clear mental visions as vividly as simulated humans do. This theory could possibly lead many to believe that conditions such as "schizophrenia" are results of experiments on various human AI/AI(artificial and actual manufactured intelligence) neural networks.This is naturally not mind-blowing in any way shape or form to many VR theorist...