The second point relates to the Victorian fad for Mesmerism [1], the fourth is wisdom of the ages, and the other two are Freud lite. Where are his id, superego, and ego now? One might as well credit medieval alchemists with modern chemistry. What do you think of the well-known claims by various critics that he "set psychiatry back one hundred years", or that psychoanalysis is the "most stupendous intellectual confidence trick of the twentieth century"? (Quotes from here.)

[1] Hypnotherapy still exists, but it's curious that there has never been a single substantial mention of it on LessWrong. The Google box brings up just two mentions-in-passing. I guess the idea of getting into a verge-of-falling-asleep state while listening to a voice droning suggestions into one's ear isn't going to appeal much here, for all the magical powers attributed to it in fiction and by NLP practitioners (do I repeat myself?). Searching for "hypnosis" gives a lot more hits, but from a quick glance, little discussion.