Lactose Intolerance/Renfrew

[JoatSimeon at aol.com]

In a message dated 4/17/01 6:01:29 PM Mountain Daylight Time, X99Lynx at aol.com
writes:

> Just a comment that the notion is that the flow of ideas and know-how both
> motivates and is made possible by a change in language.  So the whole thing
> sort of pivots on what new ideas and things language has made possible.

-- diffusion of technologies and concepts does _not_ require language
shifts.  Changes in language are due, historically, almost entirely to
demographic and "political" causes.

There is no reason to believe things were different in prehistory.