I think what they might be trying to get at is the concept of an “active placebo.” That is, a treatment that does something, but can’t treat the condition that’

I think what they might be trying to get at is the concept of an “active placebo.” That is, a treatment that does something, but can’t treat the condition that’s being studied. I disagree that psilocybin is any sort of placebo, but I think this captures the intent of the grandparent comment.