For what it's worth, here are some comments (revised) on intelligent design and theistic evolution that I recently left in a previous post in a friendly conversation with Eric:
1. I'll use evolution as shorthand for neo-Darwinism. And I'll use ID for intelligent design.
2. To my knowledge, ID is relatively "new" in the sense that Dembski describes it in his chapter "How does intelligent design differ from the design argument?" in his book The Design Revolution. An excerpt is available here. However, ID is "old" in the sense that it's in the same or similar vein as teleological arguments in general (aka arguments from design, which might be more clearly termed arguments for design). This stretches back as far as Thomas Aquinas' Five Ways if not earlier.
3. I'm very sympathetic and greatly appreciate the work of the ID guys. At the same time, I think I'm persuaded by Alvin Plantinga (e.g. "design discourse") and Del Ratzsch (e.g. "the persistence of design thinking") when it comes to assessing their work.
4. My impression is, relatively speaking, secular physicists (cosmology) seem more open-minded about arguments for design (e.g. fine-tuning) than secular biologists. I mean, there are plenty of close-minded cosmologists, but I'm speaking in comparison to secular biologists. Secular biologists seem like the dwarves in the stable in C. S. Lewis' The Last Battle, imprisoned in their own minds, and "so afraid of being taken in that they cannot be taken out". They stick their fingers in their ears and refuse so much as to entertain the possibility of anything other than a strictly material world. I guess most of them take after Lewontin: "materialism is absolute, for we cannot allow a divine foot in the door". Regarding fine-tuning, see the works of Robin Collins and Luke Barnes.
5. An interesting question to explore is whether evolution itself requires design to operate. By contrast, if the universe and all it contains including life is not designed, then would evolution even be able to get off the ground?
For starters, evolution appears to be goal-directed, that is, it appears to be teleological. It appears to be able to adapt means to ends. However, if the universe and all it contains is not designed, then how would evolution come to be goal-directed? How would it come to be able to adapt means to ends? For example, if all is undesigned, without teleological purpose, then how did the heart come to exist to pump blood to the body? A happy accident? Not to mention all the other functions in every organism on this planet. Multiply all this together and the chances of all these serendipitous events occurring seem improbable to say the least.
Stepping back, what are the chances of the origin of life? Next, of the origin of the first cell? Next, of the origin of the first multicellular organism? Next, of the origin of the first warm-blooded animal? Next, of the origin of intelligence or consciousness? And so on. Each step is not one small step, but a giant leap. A leap as giant as a human being becoming a star-child à la 2001: A Space Odyssey.
And all this is in addition to the chances of finely-turned laws to drive all this, but what are the chances of a law like natural selection in an undesigned universe?
