What "is" must have come about as a result of evolutionary pressures. Since when is the tautological an explanation? Self-interest, sympathy, ..you name it, they favoured survival therefore..as if one could talk only about the structure of 'things' and functionality (carbon is the same as diamond..is it really?, we share 95% of the same make-up as monkeys..does "95" convince you of something?), as if 'substance' itself or the qualitative could be reduced to the structure. In that sense, one might also say that God was "necessary"! I've even heard the absurdity: "God has been (scientifically) tested".
What is thought? A chemical reaction in the brain? The mind is the brain-or wholly determined by its structure. And how could you know that, one wonders, if that was true?
It gets worse. Not only is intelligence supposedly 'explained' by such a view -and here one wonders what to say of freedom which is, as Sen rightly points out, inextricably linked with rationality/reason-but intelligence itself is reduced to some quantifiable measure. Part of this is, perhaps, simply a trend in academic circles, a trend that inclines one to think only in terms of quantities (both in terms of what can be demonstrated in terms of one's research,and in terms of how one evaluates the performance of students). But one can't help think that this is also connected to the processes of commodification and quantification that are vital aspects of capitalism's extension.
'Evolutionary hand waving is an example of the tendency to take a theory which has been successful in one domain and apply it to anything else you can't understand -- not even to apply it, but vaguely to imagine such an application. It is also an example of the pervasive and reductive naturalism of our culture. 'Survival value' is now invoked to account for everything from ethics to language....
Even if randomness is a factor in determining which mutation will appear when (and the extent of the randomness is apparently in dispute), the range of genetic possibilities is not itself a random occurrence but a necessary consequence of the natural order. The possibility of minds capable of forming progressively more objective conceptions of reality is not something the theory of natural selection can attempt to explain, since it doesn't explain possibilities at all, but only selection among them'
T.Nagel, The View From Nowhere
"..Nineteenth century evolutionism..is an apocryphal ancestor of present-day existentialism. The latter's encounter with "nothingness" springs from the denial of "essence" which blocked the recourse to an ideal "nature" of man, once offered in his classical definition of reason (homo animale rationale), or in the Biblical one by creation in the image of God. The "image" , in the absence of creation, had vanished with the original; and reason had been reduced to a means among means, to be judged by the efficiency of its instrumental role in the survival issue...it does not set but serve aims. if there is a "life of reason" for man (as distinct from the mere use of reason), it can be chosen only non-rationally..But use of reason, as a means, is compatible with any end, no matter how irrational. This is the nihilistic implication of man losing a "being" transcending the flux of becoming."
--Hans Jonas, The Phenomenon of Life
(written:13/9/08)
