Marvelous, marvelous, marvelous, presentation by Graham Hancock. I've read nearly all of Hancock's books and listened to countless interviews, and yet, there were delicious surprises in this lecture for me.
Needless to say, I totally agree with Hancock's take-down of Richard Dawkins. Dawkins uses his Oxford credentials to lend credibility to totally unscientific arguments. I tire of saying this but you cannot prove a negative; you can only fail to prove a positive. But I think I've made my own views on this dogmatic, proselytizing atheist clear here, here, and here.
Hancock also gives a wonderful overview of the Gnostic beliefs in Sophia's error and how this resulted in the Demiurge and the Archons. He also explores the use of shamanic tools to free the mind from archontic manipulation.
He also spends a good bit of time on the correlations between alien abductions, shamanic experiences, and faerie lore. This is a theory that he also lays out well in Supernatural. Another lecture on the subject can be found here.
Of course his discussion of Egypt and the Giza pyramids is thorough and beautiful. That's to be expected.
This is a fairly long presentation and worth every minute of it. I was riveted.