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Errol Morris, Kuhn & the Ashtray

Errol Morris published the fourth installment of his five-part personal essay on Kuhn in today’s NY Times.  All of it is worth reading (except perhaps part III, which drags on somewhat), and I definitely encourage everyone to take a look!

What is Morris’ beef with Kuhn?  In a nutshell, he thinks that Kuhn provided volatile ammunition for “postmodernists” (that’s Morris’ term): people who want to deny there is a truth (rather than many truths), a real world (rather than multiple realities), and a compelling distinction between ethical and unethical actions (rather than just social mores).  Now, I suspect that Morris is mostly tilting at windmills here, or, at the very least, that his argument is about ten years behind the times.  But for historians of science, I think, it is worth thinking about what’s got him so upset. 

Morris’ central objection centers on the relationship between paradigms and incommensurability.  What is a paradigm and what does it mean for two paradigms to be incomm…