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Sat, 20 Jun 2009

Anti-Dawkins Paper No. 4: Evolution and the So-Called Illusion of Design

This post continues my critique of Richard Dawkins' book The God Delusion. You can find the entire critique here.

One of the main ideas in The God Delusion is that the apparent design in the biological world is only an "illusion of design" (p. 2 and chap. 4; see also p. 79). Dawkins is convinced that evolutionary theory shows there is no real design in the biological world. He trots out the old claim that Darwinism refutes the design argument for the existence of God (p. 79). Chapter 4 of The God Delusion is partly a rehash of the old argument that evolution shows there is no design in the biological world.

No matter how it is stated or obscured, the central idea of the evolutionary argument against design runs along the following general lines. The evolution of life is simply a resultant of small natural events involving living organisms and their genes. None of these events involves any design; each of them is mechanistic, fully obeys all natural laws, and is caused by other natural events. Therefore, the products of evolution cannot really be products of design.

This argument sounds good at first, but there is something deeply fishy about it (evolutionary pun intended). To see how questionable the argument is, compare it to the following argument about the human brain: Human thought is simply a resultant of small natural events involving neurons and their connections. None of these events involves any design; each of them is mechanistic, fully obeys all natural laws, and is caused by other natural events. Therefore, the products of human thought cannot really be products of design.

If we applied the skeptics' standard for design to the human brain instead of to Earth's biosphere, we would conclude that humans never designed anything! So much for Michelangelo and Edison! According to the scientific view of the mind and brain, human thought processes are neither more nor less than sum totals of small physical events, no single one of which itself involves any design. To avoid the absurd conclusion that humans never designed anything (which is really just an abuse of language, twisting the meaning of the word "design"), we have to admit the possibility that a natural process, composed of small unplanned physical events, can add up to a process of design. Once we admit this possibility, the argument that nature's design is an illusion ceases to be convincing. As with human feats of design, the fact that evolution is purely mechanistic and natural does not imply that its products can't be real designs. Nothing supernatural is required.

Another common argument for the illusion of design points to the flawed and conflict-ridden nature of many of the products of evolution. These faults, according to the argument, show that the designer, if there is one, must be far from perfect. It's more reasonable just to assume the products are not designed. Dawkins pulls this gambit (p. 134). However, this argument is even shallower than the above argument about small natural events. By the standard of this second argument, we should conclude once again that human creations are not designed - this time on the grounds that the human brain often (even usually) produces flawed products and preliminary versions instead of perfect final products.

I will not continue this line of rebuttal here, since I already have done that elsewhere. For the rest of my argument, see this document - and if you like, also read my book God, Son of Quark. For now I will just point out that the argument for an "illusion of design" is not as strong as it seems. In fact, it unravels at the slightest touch.

Can those who believe the orthodox scientific version of evolution (as I do) live with this conclusion? Is there any alternative to the "illusion of design" besides supernatural tinkering? Yes! To learn what the alternative is, read the two documents of mine that I just mentioned.

posted at: 23:52 | path: /religion/atheism/god_delusion | persistent link to this entry


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