I think the quote you attribute to McKenna sounds like other accounts I've read. Some years back, I exchanged emails with an earlier author that really wanted to carry out a somewhat formal study f the protocol--in part, to avoid the most dangerous outcomes he witnessed--so I don't think it's even close to trouble free.
You didn't mention Freud and cocaine, but that was his gift to humanity--until problems arose. I had a Hmong guide in the foothills of the Himalayas who once opened a whole tent of old men smoking opium: she was disgusted with them.
Edited 1 time(s). Last edit at 08-Sep-19 00:55 by drrayeye.