I'm glad I'm not the only one who feels that way after reading all this stuff--sometimes it makes my head spin trying to absorb it all! :) Yeah, that does sound pretty amazing if they've got evidence of Halstadt-type textiles in ancient China. Do you remember offhand from reading the book, was there any iron technology found with that or was it just copper/bronze? I have a working theory that C.J. Thomsen's assumption of a single linear bronze/iron transition has put somewhat of a straitjacket on historical models of ancient technological development, so I'd be curious if Barber's find sheds any light on that, given Halstadt's significance in the bronze/iron transition in Europe.
This was covered in Mair's (large )book. It covers the bronze age right into the present age.
I have managed to connect the Hakka Chinese (who migrated all the way across China) to the Xiongnu group. The early (Caucasian) Xiongnu, Saka, Yuezhi and other groups were related to the same group as the 'red-headed mummy.' People today do not even realize how many Caucasian people were once in China. There are many poems in Chinese lamenting the green eyes of the Han Dynasty emperors.