Steven Pinker's wide ranging book "The Blank Slate" is a tour-de-force of the rising new disciplines in the academy that are slowly overturning the social constructionist mode of analysis which has dominated intellectual life for most of the past century.
Pinker takes aim at the phenomenon he describes in his title, which he breaks into its composite parts: (1) a "blank slate" view of the mind, whereby the mind has no innate characteristics, and is simply a tabula rasa onto which ideas and experiences are poured, (2) the "noble savage" view of humanity based on Rousseau, whereby the primitive or feral is equated with the "good", and (3) the "ghost in the machine" conception of consciousness based on Descartes, whereby consciousness is seen as being separate from physicality, and standing apart from physical mental processes. Taken together, these three ideologies have led to the dominance of the "social science model" -- a view which sees human behavior as not resting at all on a physical, biological or evolutionary basis, but rather being the product of "socially constructed realities".
Pinker attacks the blank slate on the basis of several relatively new academic disciplines: cognitive science, neuroscience, evolutionary psychology, just to name a few. He documents how the radical politics of academia resisted tooth and nail the findings of these newer disciplines, and their attempt to synthesize what we know about human culture with what we know about human biology. The resistance was, and is, almost entirely political in nature, and is based on a fear of the truth. The fear is that if human behavior is not entirely socially conditioned, but is to some degree innate, this will be used to justify social evils such as racism, sexism, violence, inequality and so on. Pinker spends chapter after chapter examining several of these fears, and deflating them.
Pinker's overarching thesis is that human behavior is definitely conditioned by evolution and genetics, but that this evolution has taken place in the context of human culture. This is not a biological determinst perspective, but instead one which takes into account the biological factors as well as the social ones. Pinker points out that to the extent we tie our political and social values to false ideas about human beings, we actually make adherence to these values more tenuous -- because future scientific findings could undermine them, if we see the values based on science itself (or, rather, a misconceived understanding of science). So Pinker's advice is to separate our values -- political and social -- from science, and thereby strengthen the independent validity of these values, as well as allow science to proceed and not be stifled by politically-based fears.
To take one example, Pinker points out that to accept that men and women have biologically-based differences is not to believe that, because of these differences, men and women are consigned to only certain social roles, or are supposed to be "unequal". The value of gender equality is a political and social value, and it should not depend on actual biological identity between men and women, or an idea that gender differences are social constructs that are not at all based on biology. Instead, our values regarding gender equality should be de-coupled from biology. This allows us to affirm gender equality in its own right as a human social and political value, regardless of what biology teaches us about biological differences between the sexes, while at the same time preventing political fears relating to gender equality from stifling the progress that science is making in further understanding human behavior as it relates to bio-evolutionary differences between female and male humans.
The book is a fantastic read. Pinker is entertaining and witty in making his points. Readers will be rewarded with a sneak peek at what the future holds in terms our academic and intellectual life, and the emerging new consensus about the nature of human beings.
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