Richard Lewontin NYRB article

Richard Lewontin, co-author of The Dialectical Biologist, has a review of a couple recent books on evolution in the Oct 11, 2005 issue of the New York Review of Books. In "The Wars Over Evolution", he covers a lot of ground.

He unmasks creationism dressed up as "intelligent design" ("if the living world is too complex to have arisen without an intelligent designer, then where did the intelligent designer come from?").

He gets to the spring of creationism -- the social and psychological dislocation resulting from the technology revolution and globlization are driving a pummelled and bewildered people into a soothing story of love and redemption:

What is at issue here is whether the experience of one's family, social, and working life, with its share of angst, pain, fatigue, and failure, can provide meaning in the absence of a belief in an ordained higher purpose. The continued appeal of a story of a divine creation of human life is that it provides, for those for whom the ordinary experience of living does not, a seductive relief from what Eric Fromm called the Anxiety of Meaninglessness...

He also defends Darwinism from those who would make it into more than it is. He concisely summarizes the fundamental tenets:

Darwinism is a population-based theory consisting of three claims. First, there is variation in some characteristics among individuals in a population. Second, that variation is heritable. That is, offspring tend to resemble their biological parents more than they do unrelated individuals. ... Third, there are different survival and reproduction rates among individuals carrying different variants of a characteristic, depending on the environment inhabited by the carriers. That is the principle of natural selection. The consequence of differential reproduction of individuals with different inherited variants is that the population becomes richer over generations in some forms and poorer in others. The population evolves.

He challenges the notion of directionality or progress in evolution ("evolutionary biology is not, in fact, committed to progress"):

[T]he modern empirical science of evolutionary biology and the mathematical apparatus that has been developed to make a coherent account of changes that result from the underlying biological processes of inheritance and natural selection do not make use of a priori ideas of progress... So why does evolution not result in a general increase of the fitness of life to the external world? Wouldn't that be progress? The reason that there is no general progress is that the environments in which particular species live are themselves changing and, relative to the organisms, are usually getting worse. So most of natural selection is concerned with keeping up.

Lewontin swiftly dismisses sociobiology, memes, evolutionary psychology and other attempts to overlay Darwinism onto social processes:

"We would be much more likely to reach a correct theory of cultural change if the attempt to understand the history of human institutions on the cheap, by making analogies with organic evolution, were abandoned. What we need instead is the much more difficult effort to construct a theory of historical causation that flows directly from the phenomena to be explained."

Good stuff.

jd