Thanks. I haven't read that book, but I read Graham Hancock's Supernatural, and I'm familiar with the extreme views on psychedelics from Terence McKenna and Strassman. In fact, I'm working on an article that ties together a number of my writings from a psychedelic perspective.

If you like that article of mine, here are some others that pursue similar themes.

https://medium.com/grim-tidings/how-civilization-devours-nature-like-a-black-hole-d044fd1bf8ea?sk=986b30b7a661914f495d64fb373603ca

https://medium.com/grim-tidings/why-you-should-be-haunted-by-natures-physicality-4d52310d0817?sk=e1407bef36888713f080746a51b4c7ba

https://medium.com/interfaith-now/the-dread-of-pantheistic-enlightenment-7c87c60e85bb?sk=158f8bc9a1463ac78475169ba7eb1454

https://medium.com/original-philosophy/a-clash-of-pantheisms-d8c0c1bf581?sk=9c02993a95e09b3e47c9f4e4007007ac

https://medium.com/grim-tidings/the-inherent-value-of-a-godless-universe-980314a44fd8?sk=48b94f7149c68a39653ffa52e533e973