Re: [asa] Neo-Darwinism and God's action

From Gregory Arago:

The crux of Gage's argument seems to be the following:
  ... The words random and natural are meant to exclude intelligence. If God guides which mutations happen, the mutations are not random; if God chooses which organisms survive so as to guide life's evolution, the selection is intelligent rather than natural."

  Gage's point is that 'neo-Darwinism' is not the same thing as 'guided evolution.' The bolded sentence is ID's lynchpin. 'Guided evolution' involves a theological reading that Darwin omitted in his works and that a vast majority of 'modern synthesis' contributors (exception Dobzhansky and Fisher, outside of their scientific publications) neglected or even ridiculed. Would anyone disagree with that? If so, the following point awaits:

  Gage's claim that Randy "had to abandon orthodox evolutionary theory to keep intelligent guidance" appears valid. If 'orthodox evolutionary theory' means 'no intelligent guidance,' which is what Darwin claimed and what J. Huxley cemented for the mainstream meaning of 'neo-Darwinism,' then Gage's claim that Isaac is an 'evolutionist' but not a 'neo-Darwinist' would be legitimate. Otherwise, are TE's trying to change the scientific definition of 'neo-Darwinism' to suit their particular theological position?

It seems that there is a lot of confusion to be cleared up. We need to sort out a variety of ways in which terms are used. Careless use of terminology keeps us going in circles. It appears that "neo-Darwinism" is used in two (at least) different ways. One is simply the synthesis of Darwin's biological theory of evolution with genetic DNA mechanisms. This is the core biological theory of evolution. The term also is used as a parallel to "evolutionism" and refers specifically to Darwin's philosophical interpretation of his theory which is that, by definition, it has no divine guidance. Confusion ensues when we move back and forth between these two definitions without clarification. I did not use the term "neo-Darwinism" in my letter--only in the subject of this thread in order to pick up on Logan's response.

Logan (and Greg) continue the confusion when saying that orthodox evolutionary theory must be abandoned to acknowledge divine guidance. This is true only in the mistaken assertion, usually by both atheistic evolutionists and ID's, that orthodox evolutionary theory is innately unguided at any level.

Much more confusion is created by the use of the term random or non-random in natural processes. I risk creating even more confusioin but let me try to change the perspective a bit. Essentially there is no such thing as a random event or non-random event in nature. Everything in nature appears to be a bounded probabilistic event. The key possible exceptions so far are the force of gravity and the dark matter/energy since these forces have not been quantized. But most of what we see is the result of random effects in the bounds of a probability function. No random process is unconstrained.

Hence it does not make sense to speak of evolution as being either random or not random any more than we would describe the burning of hydrogen in the presence of oxygen as random or not random. It's not the right way to think about it. All processes have randomness somewhere in the details but all processes also have bounds on that randomness.

This afternoon I was able to attend the presentation of "Re: Design" at the MIT Museum. It was a dramatization of the correspondence between Darwin and Asa Gray. It was very well done and will be posted on the web in streaming video soon. We'll get the website for that when it's available. There wasn't much that was new in the differences between them but it was helpful to see the nature of their interaction. One thing that struck me was the basis on which Darwin held onto his view of lack of purpose. It wasn't the underlying randomness of the variability as much as the outcome itself. Why were there variations--features, functions, organisms, etc.--that were clearly useless or unsuitable for survival? There would be no such examples if there were purpose. He seemed driven by the lack of perception of purpose of the end product rather than the process.

In the neo-whatever world, we like to focus on the atomic structure and mechanisms. So we like to think about the random cosmic ray that induced a point mutation, or the random inducement of gene duplication, or whatever. Darwin however looked at the macroscopic world. In one quote he cited a bird swooping in to eat a gnat. Was it God's purposeful action that caused that particular bird to snatch that particular gnat at that particular time? In this vein, we all have a problem, whether ID or not. We usually strain in some way to ensure that while God works his will in every process, we certainly don't want him to be seen as having willed sin and evil or to be too closely related to causing specific suffering.

Finally, lest this post get far too long, let me suggest that, as far as we know, there is no unique physical law in biological systems. That is, the evolutionary process does not require any alteration or addition to the fundamental forces of nature. The very same electromagnetic force, strong force, and weak force, in a grand graviational field, that underlies all other processes are the same as those in evolution. No additional fundamental law is involved. If we trust God to be able to carry out his will in any other process, how could we ever insist that God can only carry out his purpose in evolution if he deviates from that model?

Randy

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Received on Sat, 16 Feb 2008 22:20:26 -0500