Disclaimer: I don't subscribe to all the philosophy of Terence McKenna, I don't think everyone should run out and consume psychedelics, and I don't think he (or most people) really understood the meaning of the forbidden tree in the garden, but this video is very insightful, especially given how long ago he said these things. After Skool did a great job with the accompanying graphics, which put McKenna's speech into a modern day perspective. It's amazing how accurate it is now more than 30 years later. I think it's worth listening to.
https://m.youtube.com/watch?v=1WXroiXWfcI