Good guest post at Uncommon Descent by Aurelio Smith,
For those who prefer to comment here, this is your thread!
For me, the argument by Ewert Dembski and Marks reminds me of poor old Zeno and his paradox. They’ve over-thought the problem and come to a conclusion that appears mathematically valid, but actually makes no sense. Trying to figure out just the manner in which it makes no sense isn’t that easy, though I don’t think we need to invent the equivalent of differential calculus to solve it in this case. I think it’s a simple case of picking the wrong model. Evolution is not a search for anything, and information is not the same as [im]probability, whether you take log2 of it or not. Which means that you don’t need to add Active Information to an Evolutionary Search in order to find a Target, because there’s no Target, no search, and the Active Information is simply the increased probability of solving a problem if you have some sort of feedback for each attempt, and partial solutions are moderately similar to better ones.