Dandello,
Interesting! I wonder how well-accepted his hypothesis is and how he arrived at his conclusions? I'd love to compare the evidence for and against. I think I might just track down his book. In any event, my linguistic studies are over a decade old, so what I have learned may have been superseded.
Incidentally, if anyone is interested in learning a bit about the comparative method and historical linguistics, they can go to the following sites:
this site and
this site . I have not explored either one thoroughly, but what I saw at a glance looked like nice introductions to the topic. And here is an image of the proposed Proto-Indo-European family tree:
Joy,
Lynn