A fine documentary . I even have this on DVD somewhere. I do believe that history is very similar to how Graham Hancock sees it alright, and it is just a matter of time until we discover something which stretches our known history back a few more thousand years. Gobekli Tepe is an example of this... but I am willing to bet civilisation is much older.
Thanks for the video again buddy
RE: The World's Largest Neolithic Construction... and you probably have not heard about it