I know a transhumanist who has strong religious visions, which she once attributed to future minds reaching back in time and talking to her... but then she reasoned it out, asking why future superminds would grant only her the solace of conversation, and why they could offer vaguely reassuring arguments but not tell her winning lottery numbers or the 900th digit of pi. So now she still has strong religious experiences, but she is not religious. That's the difference between weak rationality and strong rationality, and it has to do with the depth and generality of the epistemic rules that you know and apply.

Does this person genuinely have schizophrenia? I've occasionally wondered what would happen if a schizophrenic was taught rationality, or a rationalist developed schizophrenic. I didn't think such a thing had happened already though.