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In academia today, there exists in some segments of the humanities a new "postmodernist" theory which eschews such concepts as objective reality, logic, right and wrong and instead adopts a universal concept of relativism. I believe I know where this started: the axiom is, in fact, political correctness: No-one should ever be offended. Never hurt anyone else's feelings, never tell them they're wrong about something. But what if two people actually do fundamentally disagree about something? If neither of them is wrong, then it must be possible for contradictions to exist. Logic says that can't happen, so logic must be wrong. If they make contradictory statements about the real world, then they must both be right, which means that reality is entirely subjective, never objective. (If reality was objective, then at least one of them must be wrong, and no-one is ever wrong, for then it would be necessary to tell them so, which would offend them, and axiomatically we may never offend anyone.) In defense of that axiom, the result is a tower of babble. A professor of physics at NYU named Alan Sokal observed this process and was bemused, and progressively more and more disgusted by it. Five years ago he decided to try an experiment: For some years I've been troubled by an apparent decline in the standards of intellectual rigor in certain precincts of the American academic humanities. But I'm a mere physicist: if I find myself unable to make head or tail of jouissance and différance, perhaps that just reflects my own inadequacy. His paper is a masterpiece of double talk, including puns masquerading as argument, non sequiters, unsupported and outrageous statements, and sheer nonsense. They published it. The first paragraph is typical: There are many natural scientists, and especially physicists, who continue to reject the notion that the disciplines concerned with social and cultural criticism can have anything to contribute, except perhaps peripherally, to their research. Still less are they receptive to the idea that the very foundations of their worldview must be revised or rebuilt in the light of such criticism. Rather, they cling to the dogma imposed by the long post-Enlightenment hegemony over the Western intellectual outlook, which can be summarized briefly as follows: that there exists an external world, whose properties are independent of any individual human being and indeed of humanity as a whole; that these properties are encoded in "eternal'' physical laws; and that human beings can obtain reliable, albeit imperfect and tentative, knowledge of these laws by hewing to |