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| quote: | Originally posted by MrJiveBoJingles
Of course it will be arbitrary. "Species" works in much the same way; we come up with different boundaries depending what we use as a criterion for separation. This does not mean that all discussion of "species" is meaningless. |
That is largely true, which is why I tend to ascribe to a relatively nominalist view of such classifications.
That said, there is a significant difference between the two problems. The problem with defining species is simply that there exists so much diversity among organisms, even in the way that they reproduce and therefore pass along their genetic material, that it is difficult to construct a definition which is applicable to every form of life.
For human "races" the problem is the opposite: human beings are so overwhelmingly genetically similar, that it is necessary to cherry-pick traits which are much more frequently (but not always) found in those with a particular common ancestry in order to find a line upon which to attempt to distinguish. Again, such classification may be useful in a particular situation relevant to the particular characteristic being considered - but as far as being a basis for a system of racial classification in a general sense, they are neither here nor there.
| quote: | | I agree; the definition should vary according to its utility in the field in question. I would not propose giving just one definition to "race" and then using it in all fields. |
Indeed. My contention would be that there is no biological definition of race that has any utility whatsoever with regards to the issue raised here in this thread. That is, unless we're talking about Senator Obama's race in the context of how likely his offspring are to have sickle-cell anemia, or something similarly obtuse.
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