Fair point. OK, the fact that it's reversible seems about as agreed on as any facet of this topic - more so than many of them. I'm inclined to believe this isn't a hoax or anything due to the sheer number of people claiming to have done it and (apparent?) lack of failed replications. None of this is accepted science or anything, there is a certain degree of risk from Side Effects No-one Saw Coming and hey, maybe it's magic and your soul will get nommed (although most online proponents are careful to disavow claims that it's anything but an induced hallucination.)