The read was really interesting.
As for the end; I haven't heard this about the Sumerians before.
Lloyd Pye - check out his webpage at
www.lloydpye.com - is apparently an Interventionist, meaning that the main cause of the World looking the way it does today is because of alien intervention. This groups him in with the Raelians, the Scientologists, the Four Winds and those people who castrated themselves in Switzerland. (Don't know their name in English.)
As for atheists disagreeing with evolution; I've met a few Chinese atheists who doesn't believe in it, but many Chinese who consider themselves atheist still take certain spiritual elements as natural, such as ancestral worship and spirits.
New thoughts and viewpoints are always good.