He gave me a sales pitch.

But new research suggests another possibility: all Africans may have ancestry from “West Eurasian” populations which moved back into Africa after the “Out of Africa” event ~50,000 years ago. […]

To the N we find the wide, complicated «basin» of Tethyan sediments, between the northern Bhutan antiform of the crystalline thrust sheet and the con- spicuous Suture Zone along the Tsangpo river. The latter is bordered to the N by the granitoids of the Transhimalaya (Kangdese belt of the Chinese authors).

A turnement were best to bede.