Can be science! Doesn’t have to be science! Science folks do exploratory studies all the time to get a sense of whether the tree is worth barking up before they do the hard work of proving it.
Psychedelic studies might not suit themselves to FDA gold standard double-blind clinical trial science, but science overall involves a really broad toolkit. Psychedelics aren’t the only kind of intervention that can’t be safely or effectively blinded, and there are methods that attempt to demonstrate an effect anyway.
It seems to be thanks to people trying stuff as well as rigorous scientific studies that psychedelics are having their present-day moment in the sun (thanks, MAPS et al!). (My favorite part was that time Alexandria Ocasio Cortez cosponsored a psychedelics bill with arch-conservative, retired Navy SEAL Dan Crenshaw)
Things can be valuable without science proving it—nobody’s coming after the local preacher or imam or rabbi or shaman demanding that they scientifically prove their ministerial insights. And lord help the busybody who comes at a retired Navy SEAL trying psychedelic therapy for their post-traumatic stress…
I wonder, though—does it seem to you that psychedelics should be industrialized? There’s a fine line between “legal” and “aggressively marketed by drug companies.”
I think they should be studied using the full spectrum of approaches and people available to us, not restricted (officially/rhetorically) to an ideologically constrained and confused discipline like science as it is (which is not the same as its scriptures teach).