Did Mushrooms Make Us Human?

In 1992, Terence McKenna proposed that the human mind was built by a mushroom. Psilocybin, eaten off the African savanna, sharpening vision, then language, then imagination, then religion. One object, four mysteries solved.

It's an elegant story. It has four load-bearing claims, and three of them fail outright.

But this isn't just a takedown. Because there is a real history of humans and psychoactive fungi — carved stone in the Guatemalan highlands, reindeer herders in the Arctic, a healer in Oaxaca whose life was destroyed by the attention — and it's stranger and better documented than the myth.

A note on tone: McKenna was not a fraud and this video doesn't treat him as one. He described the idea as speculation and said repeatedly that it needed testing. What happened afterwards — the speculation getting stripped out as the claim travelled — is the more interesting story, and it happens to good ideas as often as bad ones.

This video is about the history and evidence surrounding a scientific claim. It is not advice of any kind, and it does not describe or encourage the use of any substance.

Written, illustrated and narrated by me. Every image is made for the video.