Yes, but not hallucinogenic or psychedelic. (Whichever word you prefer.)

> Are opioids psychoactive?

Yes, obviously.

But the idea that psychoactivity is a (or the?) determining characteristic of a compound in determining whether it is prohibited is silly on its face.

First and foremost, thank you for your work! And I would certainly say you're likely considerably more versed than I. From my research, I felt like his escapades at Millbrook and also his shenanigans with harvard did 2 things: On Millbrook, pushed away from his work as serious work and more towards play, that rubbed people the wrong way. On Harvard, I don't think the universities were as open to ideas in that direction after he caused a ruckus. I did quite a bit of research, but it was years ago, if you wanna drop me an email I'll see if I can rustle up the things that lead me down that thought path and send them over, it was mostly from interviews of others around that time.