Thank you for sticking your neck out to share, @OldFan ! I did wonder what your personal experience was to make you so wary. And I completely understand it.
I had no expectations of the psychedelic experience. I did it in my mid 40s, nearly 20 years ago now. The guy who introduced me to it all was, as far as I was concerned, full of shit. Generally, I assumed he was either joking or delusional, but after a lifetime of obeying all the rules I felt curious and ready to experiment. I was astonished when it transformed my life in many positive ways.
Later on I tentatively, and very carefully, in complete privacy and quiet, shared the experience with a couple of close friends (separately) and they too benefited from it (apparently miraculous recovery from PTSD, and equally miraculous escape from a long-term abusive relationship). The common pattern for all three of us seemed to be that the experience somehow helped us to rid ourselves of pointless negativity that was poisoning our lives.
Meanwhile, the guy who introduced me to it all lost the plot. “Drug-induced psychosis” in his case was triggered by full-on abuse of all kinds of drugs, including weed. Cannabis is a funny one because it is easy to integrate into daily life as a sort of social relaxant. I’ve seen a few people spiral into paranoia with it. But I eventually found out from his family that he had shown signs of [what was probably] schizophrenia much earlier in life, though, so it’s a bit of a chicken-and-egg situation that we’ll never have answers to.
Based on his own experience, my now-DH is very much of your view: that it’s all just a meaningless drug-induced brain-fart. We just agree to disagree on this. He was younger when he did this sort of thing, and mixed it with alcohol and weed etc, in chaotic environments such as festivals, so his actual responses are hard to disentangle. Who knows, really!
I’m all for evidence-based medicine and RCTs, but suspect that this particular therapy is difficult to capture in a way that is acceptable from a drug licensing point of view. Medicines are expected to be predictable (i.e. everyone will respond the same way) and convenient (e.g. must not interfere with work schedule), but one of the things about the psychedelic experience is that it seems to deliver what you most need, whether you enjoy/want it or not. Tailored therapy indeed! Or, as you and DH would say, just a load of old brain-farting 😎