Monday, May 14, 2012

Resisting Scientism

Philip Kitcher dares to say "history and the humanities are also a form of knowledge" — The Trouble with Scientism. An excerpt:
    The problem with scientism—which is of course not the same thing as science—is owed to a number of sources, and they deserve critical scrutiny. The enthusiasm for natural scientific imperialism rests on five observations. First, there is the sense that the humanities and social sciences are doomed to deliver a seemingly directionless sequence of theories and explanations, with no promise of additive progress. Second, there is the contrasting record of extraordinary success in some areas of natural science. Third, there is the explicit articulation of technique and method in the natural sciences, which fosters the conviction that natural scientists are able to acquire and combine evidence in particularly rigorous ways. Fourth, there is the perception that humanists and social scientists are only able to reason cogently when they confine themselves to conclusions of limited generality: insofar as they aim at significant—general—conclusions, their methods and their evidence are unrigorous. Finally, there is the commonplace perception that the humanities and social sciences have been dominated, for long periods of their histories, by spectacularly false theories, grand doctrines that enjoy enormous popularity until fashion changes, as their glaring shortcomings are disclosed.

    These familiar observations have the unfortunate effect of transforming differences of degree into differences of kind, as enthusiasts for the alleged superiority of natural science readily succumb to stereotypes and over-generalizations, without regard for more subtle explanations.
    The emphasis on generality inspires scientific imperialism, conjuring a vision of a completely unified future science, encapsulated in a “theory of everything.” Organisms are aggregates of cells, cells are dynamic molecular systems, the molecules are composed of atoms, which in their turn decompose into fermions and bosons (or maybe into quarks or even strings). From these facts it is tempting to infer that all phenomena—including human actions and interaction—can “in principle” be understood ultimately in the language of physics, although for the moment we might settle for biology or neuroscience. This is a great temptation. We should resist it. Even if a process is constituted by the movements of a large number of constituent parts, this does not mean that it can be adequately explained by tracing those motions.

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