This was an excellent insightful post thank you
However, the real credit should go to people like Jonathan Ott, Charles Grob, Stanislav Groff, James Fadiman and Benny Shanon. Terence McKenna too, of course, but I find his views are less appealing and less convincing to the typical HN demographic. There are far more academically credible authors who write deeply about these things than TM.