The Wikipedia hit-piece on Intelligent Design (NWE’s introductory article is much fairer and better informed) leads with an illustration of a watch; an invidious allusion to William Paley’s famous parable of stumbling over a stone in a field vs. finding a watch in the same field, that appears in Ch I of his 1802 [- 6 ] Natural Theology:
>>IN crossing a heath, suppose I pitched my foot against a stone, and were asked how the stone came to be there, I might possibly answer, that for any thing I knew to the contrary it had lain there for ever; nor would it, perhaps, be very easy to show the absurdity of this answer. But suppose I had found a watch upon the ground, and it should be inquired how the watch happened to be in that place, I should hardly think of the answer which I had before given, that for any thing I knew the watch might have always been there. Yet why should not this answer serve for the watch as well as for the stone; why is it not as admissible in the second case as in the first? . . . >>
He continues:
For this reason, and for no other, namely, that when we come to inspect the watch, we perceive—what we could not discover in the stone—that its several parts are framed and put together for a purpose, e. g. that they are so formed and adjusted as to produce motion, and that motion so regulated as to point out the hour of the day; that, if the different parts had been differently shaped from what they are, or placed after any other manner or in any other order than that in which they are placed, either no motion at all would have been carried on in the machine, or none which would have answered the use that is now served by it.
This is of course, an invitation to the argument by inference to best explanation of empirical observations.
However, it is usually dismissed today as an example of the weakness of attempts to argue by analogy (itself an error, credible analogy is a key facet of real world inductive argument, the cornerstone of science), and the issue put on the table in rebuttal is usually that unlike watches, living things can self-replicate at cellular level, and reproduce with variation, thus evolve. Problem solved, nothing to see here, let us move on.
Not so fast, this dismissal argument is a strawman fallacy.
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