He said to me , less than a month ago
the most recent common ancestor of T1 and T2 was a single individual and he might have lived in Azerbaijan, or Bhutan, or somewhere in between, or somewhere a bit further south or west, but I doubt if he or his sons and grandsons travelled very far from the region where they were born. As far as we can tell, after 10000 years only 3 of their descendant lines had survived (two from T1 and one from T2). So we will never know how many branches of T came into existence and then died out in those 10000 years, or how far they spread.