Theories of scientific progress based on replacement of explanations by better ones have to grapple with the unspecifiability of what makes one “better.” Peter Godfrey-Smith, Theory and Reality, p. 93pic.twitter.com/YnpZtoEKqw
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In the Biometricians vs Mendelians case, which explanation is harder to vary, and why?
I think Deutsch would want to say that the apparent incommensurability of the two theories constituted a “problem,” the solution to which was found in their eventual reconciliation. I’m not sure whether he’d invoke the “hard to vary” criterion here or not. https://bit.ly/2n4pyBa pic.twitter.com/0XzlZv4Nzq
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