Holy Shit - They put a disclaimer on this video -

NOTE from TED: Please be aware that this talk contains outdated and counterfactual assertions, and should not be understood as a representation of modern scholarship on ancient civilizations. If ancient civilizations interest you, TEDx Talks contain many fascinating and well-researched talks such as.........

and then great follow-up comments on youtube:

"Since crater was discovered in Greenland, TED's note contains outdated and counterfactual assertions, and should not be understood as a representation of modern scholarship."

"WARNING: This video is has not been approved by your overlords. You will be ostracized for considering these ideas."

"I didn't realize TED was the thought police. What a joke."