John Derbyshire is on The Corner arguing that we can never safely infer that certain biological structures were designed. To a reader who asserted that organizational complexity cannot arise from impersonal processes, Derbyshire replies, “How do you know it can’t? It is true that the genesis of organizational complexity is not currently well understood; but to leap from that to telling me we shall NEVER be able to find a natural-law explanation for it is just dogma.”
Derbyshire’s argument is worth confronting because it represents the opinion of leading Darwinists. Biologist Kenneth Miller, for instance, routinely makes just such an argument. Design theorist William Dembski responds thus:
Miller claims that the problem with anti-evolutionists like Michael Behe and me is a failure of imagination — that we personally cannot “imagine how evolutionary mechanisms might have produced a certain species, organ, or structure.” He then emphasizes that such claims are “personal,” merely pointing up the limitations of those who make them. Let’s get real. The problem is not that we in the intelligent design community, whom Miller incorrectly calls “anti-evolutionists,” just can’t imagine how those systems arose.
The problem is that Ken Miller and the entire biological community haven’t figured out how those systems arose. It’s not a question of personal incredulity but of global disciplinary failure (the discipline here being biology) and gross theoretical inadequacy (the theory here being Darwin’s).
The particular mechanism Miller has in view here is the bacterial flagellum. Click here and scroll down for a good, brief description and animation of the bacterial flagellum, and here for an enlarged view with its parts labeled. Biochemist Michael Behe made this little engine that could famous by showing that it was irreducibly complex, like a mouse trap: “If any one of the components of the mousetrap (the base, hammer, spring, catch, or holding bar) is removed, then the trap does not function.” With even four of these parts, it’s utterly useless. The mousetrap is irreducibly complex.
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