I was listening to Donald Knuth give an Author's Talk over at Google and he did it in soft of a Q&A setup. One of the questions was, I think, particularly evocative: "is the brain really a computer and if so, what are the theological implications?" When I heard that, I put the video on hold to get my thoughts down. Here is the answer, as I would have given it (and I'll listen to Knuth's answer in a second):
"If you want to think of the human brain as a computer, I suppose it is as good an analogy as any. If it is, it would be a biological computer unlike any in existence. But I do not see this posing any problems, theologically. One of the most important ideas in Christianity is that a human being has both a body and a soul. It is interesting. C.S. Lewis once said that you do not have a soul. You are a soul. You have a body. This seems particularly pertinent, because if you want to say that the human body is equipped with a massively powerful computer, fine. It is still under the control of the soul which truly is the essence of the human being. Finally, Faith is interested in the soul. The fact that your soul is operating a computer does not change its overall status and does not pose any difficulties to the Christian faith--it does not even change anything, any more than determining the composition of the rest of the body has."
That's pretty close to my knee jerk reaction. Naturally, I have had a few (five or so) minutes to refine it so it probably would not have come out so well had I said it, but the content would have been more or less the same.