I guess he must be just too busy to answer. Too busy writing extremely important articles like this one, for example, which is the only article published so far this year in the intelligent design vanity journal, Bio-Complexity. A journal, by the way, for which the illustrious Robert J. Marks II is also the Editor in Chief! The intensive peer review that article must have undergone is rather mind-boggling. I wonder how many times he sent it back to himself for revision.