I’m glad to see that First Things made Avery Dulles’ article on God and evolution available as this month’s free article.
Dulles distinguishes three (non-creationist) approaches to evolution: theistic evolutionism which sees the process of evolution as the outworking of inherent properties of the universe established by God, Intelligent design, which claims that certain particular facets of the evolutionary process are inexplicable without reference to a divine intelligence, and what we might call “holism” which maintains that the behavior of higher existents (such as organisms) isn’t reducible to or fully explicable by the laws governing lower ones (such as the laws of chemistry or physics).
Dulles cites John Polkinghorne as an example of someone in this third school of thought. In his recent book Exploring Reality Polkinghorne makes that interesting suggestion that the human mind’s access to a realm of intelligible universals such as mathematics and logic, goodness and beauty, could itself be a factor in human evolution. That is, he wants to expand the relevant sense of “environment” to include the non-physical “environment” of the intelligible world.
Polkinghorne writes:
Once one accepts the enrichment beyond the merely material of the context within which human life is lived, one is no longer restricted to the notion of Darwinian survival necessity as providing the sole engine driving hominid development. In these noetic realms of rational skill, moral imperative, and aesthetic delight–of encounter with the true, the good and the beautiful–other forces are at work to draw out and enhance distinctive human potentialities. (p. 56)
Obviously Polkinghorne isn’t suggesting that our cognitive access to the non-material intelligible realm alters the individual genetic structure that is passed on to one’s descendants. Rather, it creates
a language-based Lamarckian ability to transfer information from one generation to the next through a process whose efficiency vastly exceeded the slow and uncertain Darwinian method of differential propagation. It is in these ways that a recognition of the many-layered character of reality, and the variety of modes of response to it, make intelligible the rapid development of the remarkable distinctiveness of human nature. (p. 57)
The idea here is that human development is explained, at least in part, by the responses we make to this more comprehensive “environment” that includes the realm of intelligible truth, goodness, and beauty and thus isn’t reducible to more materialistic accounts.
Dulles cautions against the “God of the gaps” thinking that seems to characterize the Intelligent Design school, but he also warns that “Christian Darwinists run the risk of conceding too much to their atheistic colleagues.”
They may be over-inclined to grant that the whole process of emergence takes place without the involvement of any higher agency. Theologians must ask whether it is acceptable to banish God from his creation in this fashion.
The kind of holism championed by thinkers like Polkinghorne (I’d also place Keith Ward somewhere in this school) seeks to show how God can influence the process of evolution without resorting to the kind of tinkering that ID theorists seem to imply. Some process thinkers, for instance, describe God as “luring” creation toward certain states of being. Polkinghorne (as well as Ward, I think) wants to say that God intervenes in more direct ways too. But I have to say that I find Polkinghorne’s concept of “downward” causation as the input of information by which he tries to explain God’s action in the world pretty darn obscure, at least as it pertains to action on non-living/non-intelligent things.*
What Polkinghorne, et al. are up to here, it seems to me, is trying to thread a third way between the deism of the theistic evolution crowd and the God-of-the-gaps tinkering of the ID crowd. They base this partly on the idea that modern science has shown the physical universe to have a “looser” causal structure than that imagined by classic Newtonian physics (and more to the point its philosophical popularizers). If physical events are underdetermined by preceding ones, then there appears to be room for God to exert some kind of influence without “violating” the laws of nature. The trick, or so it seems, is to give some account of how God exerts that influence without conceiving of it in some kind of quasi-physical infusion of energy. That’s what I take Polkinghorne to be getting at in talking about causation by means of “information.”
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*I note that next month the Templeton Foundation Press is reissuing Ward’s Divine Action which seeks to address these questions. That’s one that’s probably worth checking out.

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