It is time to take stock: What has the intelligent design movement achieved? As science, nothing. The goal of science is to increase our understanding of the natural world, and there is not a single phenomenon that we understand better today or are likely to understand better in the future through the efforts of ID theorists. If we are to look for ID achievements, then, it must be in the realm of natural theology. And there, I think, the movement must be judged not only a failure, but a debacle.
Very few religious skeptics have been made more open to religious belief because of ID arguments. These arguments not only have failed to persuade, they have done positive harm by convincing many people that the concept of an intelligent designer is bound up with a rejection of mainstream science.
I suspect that some religious people have embraced the ID movement’s arguments because they want “scientific” answers to the scientific atheists, and they know of no others. But there are plenty of ways to make a case for the reasonableness of religious belief that can be persuasive to many in the scientific world. Such a case has been made by a growing number of research scientists who are Christian believers, such as John Polkinghorne, Owen Gingerich, Francis Collins, Peter E. Hodgson, Michal Heller, Kenneth R. Miller, and Marco Bersanelli. I have addressed many audiences myself using arguments similar to theirs and have had scientists whom I know to be of firm atheist convictions tell me that they came away with more respect for the religious position. Religion has a significant number of friends (and potential friends) in the scientific world. The ID movement is not creating new ones.