sunnuntai 20. syyskuuta 2015

Utter significant truths, or your life is a sad waste


A fantastic quote from Philip Kitcher:

"Your duty isn't just to utter truth, but to utter significant truth. ... Imagine Humpty, a self-styled dedicated inquirer. Humpty spends his life piling up truth, and he does it through intense acts of postulation. His rate of postulation is so fast that his notebooks are constantly filling up with the vast numbers of new truths he has discovered. Eventually, after his long career is over, the archivists come to prepare the Gesamtausgabe that will include all his many discoveries. I reproduce a fragment of a typical page (one drawn from random out of the hundreds of thick volumes).

   All snarks are snarks.
   All boojums are boojums.
   All snarks are boojums.
   All knurlytoodles are either snarks or boojums.
   No knurlytoodle is both a snark and a boojum.
   If there is a boojum, then the smallest knurlytoodle is one.

The marginal notes record the postulations that show all these fascinating claims to be analytic truths.

Is Humpty a responsible inquirer? ... His pages contain nothing but truth, and his careful postulations reveal his justifications. So perhaps we should celebrate Humpty? I think not. His archive is a travesty of inquiry, his life a sad waste. There is nothing to learn from him." (Some Answers, Admissions, and Explanations, in Marie I. Kaiser, Ansgar Seide, eds. Philip Kitcher: Pragmatic Naturalism, 2013)

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