As you know, I think things were far more complex than the bulk of the achademics would like. You are never, in my mind, going to get any nice neat liniar path to development or exploration.
No question, the Tocharins are among the most interesting. As more arcaeologists spread onto the Stepp and Iranian/Afghan areas, we may get some answers. The area north of the Tarim Basin may provide some answers. I recall you talking about the Discovery/National Geographic specials.
I hope soon. As I was reading the book by Oppenheimer and his saying that some of the refugees from Sundaland went up the rivers/waterways of Asia, even into Tibet. I kept thinking of these Tocharian folks. Are Europeans from Asia?
The fabrics described by Elizabeth Barber (Mummies Of Urumchi) and how similar (almost exact) they were to the fabrics of the famous Celtic site at Halstadt. These folks were 1,000 years and 5,000 miles apart. It makes sense if they were migrating toward Halstadt instead of the other way around as I have been thinking. Did the Celts come out of Asia?