At Uncommon Descent, a News posting by Denyse O’Leary shows us a video by Jonathan McLatchie. News then expects “Darwin faithful” to “create a distraction below”.
McLatchie defines Specified Complexity as information that matches a predefined pattern, such as specific protein folds needed to have a particular function. His video is in a series entitled “One Minute Apologist” (he takes 2 minutes).
He never says anything to clarify whether natural selection can put this information into the genome. We’ve discussed these points many times before, but let me briefly mention the dilemma that he doesn’t resolve for us:
1, Complex Specified Information was defined by William Dembski in No Free Lunch in this way. The high level of improbability that he required was supposed to show that random mutation could not produce CSI. And a Law of Conservation of Complex Specified Information was supposed to show that natural selection could not achieve CSI. Unfortunately the LCCSI is not formulated so as to be able to do that, because it changes the specification in the before and after states.
2. So in 2005-2006 Dembski instead defined Specified Complexity. Now it is a measure of how improbably far out we are on the scale of specification, with the improbability defined this time as computed taking not only mutation into account, but also natural selection. Dembski does not say how to compute that probability. Now SC really does rule out natural selection — simply by being defined so as to do so. It thereby becomes a useless add-on quantity, computable only once one has already found some other way to show that the information cannot be put into the genome by natural selection.
McLatchie presumably wants to clear us all up on this, but he seems to be using the definition of 1 with the name of 2. So we end up confused as to whether his quantity can be put into the genome by natural selection, or whether it is a useless after-the-fact add-on to some other argument which establishes that it can’t. And he’s had a whole extra minute.