Dembskiの"God of the gaps"な反証可能性

インテリジェントデザイン理論家Dr.William A. Dembskiは、2001年1月に「Is Intelligent Design Testable?」において、インテリジェントデザインは反証可能だと主張した:
Intelligent design is eminently falsifiable. Specified complexity in general and irreducible complexity in biology are within the theory of intelligent design the key markers of intelligent agency. If it could be shown that biological systems like the bacterial flagellum that are wonderfully complex, elegant, and integrated could have been formed by a gradual Darwinian process (which by definition is non-telic), then intelligent design would be falsified on the general grounds that one doesn't invoke intelligent causes when purely natural causes will do. In that case Occam's razor finishes off intelligent design quite nicely.



こんなことを口走ったせいなのか、インテリジェントデザインの本山たるDiscovery Instituteは、還元不可能な複雑さ(Irreducible Complexity)とその代表例としてのバクテリアの鞭毛を絶対死守しようとしてるかな?

それにしても、科学の隙間があったらインテリジェントデザインの証明で、隙間が埋まったら反証だという"God of the gaps"論になっている。何か言うと"God of the gaps"になってしまうDembskiだ。

これについて、進化論ブログPanda's Thumbsの執筆者のひとりWesley R. Elsberryは「
"Dances With Popper": An Examination of Dembski's Claims on Testability
One will note that Dembski's deployment of "falsifiability" is unrecognizable as any sort of usage that could be said to be derived from Popper. Demsbki does not proceed from some "theory of intelligent design" and find a proposition that is an entailed consequence and test its empirical validity, as Popper required for his "falsifiability". Dembski asserts that an essentially unrelated proposition, whether some phenomenon can be explained sufficiently well by reference to a completely unrelated theory, somehow has implications for the truth value of the conjecture of interest. This has no corresponding construct in Popper's framework, perhaps for the simple reason that it is an obviously invalid approach that Popper wouldn't have touched with a ten foot pole. (See below for more.) It was this clearly erroneous deployment of "falsifiability" that I strongly critiqued ...


posted by Kumicit at 2006/07/20 00:01 | Comment(0) | TrackBack(0) | Dembski | このブログの読者になる | 更新情報をチェックする



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