According to Martin Glover:
> Two examples of things which have managed sustained cultural lineages, but
> with altered meanings. Interesting, that, come to think of it: activities
> are passed on, meaning is lost.
Which analogises to much of evolution: the substrate is in
place, so is used as the platform/mechanism for a whole new
bunch of useful stuff (such as e.g. motor programs being
applied to the mouth in the evolution of language).
Ewan
-- Ewan McNay - http://wsrv.clas.virginia.edu/~ecm5f Gamer/socialist/neuroscientist/cook (not necessarily in that order) "Ewan, why does my rat look like a vampire?" - labmate, Nov 19 1998