i read the original book where i think he came up with the theory (food of the gods) and while there were some interesting questions and thoughts, it was overall a pretty laughable and stupid book. zero evidence, just hypotheticals stated as factual reality. and i say this being extremely pro-psychedelic. we can have discussions about the benefit and importance about them without including weird pseudoscience. the book was also poorly written, mckenna frequently goes on tangents mid-chapter. he’s got cool quotes i guess, but he’s hard to take seriously for me.