I am truly sorry…for being caught on camera saying what I think.

This is probably more about industrial use than residential.

You’ve basically described what the authors did. But the other commenter is saying several variables were not suitably controlled for. Which I don’t think is very easy given the hurdles and complications of wild Psilocybe collection from around the world.

Heaps of folks near me (Australasia) hunt wild Psilocybe. I help moderate several specialist groups focused on ID and harm reduction so do get to see quite a lot of activity. Although US and some EU countries loosening restrictions definitely has skewed things towards cultivation.

I guess I struggle to see how this could be done with wild harvested mushrooms in a meaningful way. Perhaps with cultivated mushrooms. But then we won’t really know if the results are relevant to real world situations.

Have you considered contacting the authors with feedback?

*Alan Rockefeller. While he is a contributor…he doesn’t appear to be PI on this?

How would you build a study like this? Consider that the mushrooms come with legal challenges. Also that they were sourced from around the world as well as collected wild from a couple of places - which is always going to come with a high degree of variability.