Curt Fischer wrote:

> The scientific argument against the concept of race that I have seen was
> that there are smooth variations in many traits (skin color, nose shape,
> etc.) instead of discrete jumps.  Since these traits vary from person to
>  person in a smooth, continuum-type way, assignment of a person to a
> given class based on those features is arbitrary and has no special
> scientific meaning.
> 
That logic has always struck me as faulty. Just because there are colors
that we could never agree as whether it was purple or blue doesn't mean
that there isn't such a thing as "color", and that classifying things
according to it is useless.

KWW