Comment by hn_throwaway_99

> A lot of the published outcomes are surprisingly low quality, like this case report or all of the studies that neglect to include a control group. Mental health studies without a control group are basically useless because even a control group that doesn’t receive a placebo (that is, people you simply monitor and interact with) will get better.

Honest question, does a control group really matter that much when it's not possible to do a blinded study? Unless it's some incredibly small microdose, I would assume most study participants are able to tell if they're tripping or not.