This episode does discuss the use of psilocybin.
All links from studies, articles, and maps I consulted for this interview:

STUDIES:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8033615/#:~:text=In%20this%20article%2C%20subjective%20effects,measured%20by%20self%2Dreport%20data.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9346139/

VICE article:
https://www.vice.com/en/article/gv5p5y/a-brief-history-of-microdosing

RESEARCH MAP
https://psychedelicalpha.com/data/psychedelic-laws

JAMES FADIMAN
https://microdosinginstitute.com/

SENATE BILL 768:
https://www.senate.mo.gov/24info/bts_web/Bill.aspx?SessionType=R&BillID=349