It has been more than a year since kairosfocus posted his now-famous challenge on Uncommon Descent, inviting Darwinists to submit an essay defending their views. A Darwinist named Petrushka has recently responded, over at The Skeptical Zone. (Petrushka describes himself as a Darwinist in a fairly broad sense of the term: he accepts common descent as a result of gradual, unguided change, which includes not only changes occurring as a result of natural selection but also neutral change.) The terms of the original challenge issued by kairosfocus were as follows: Compose your summary case for darwinism (or any preferred variant that has at least some significant support in the professional literature, such as punctuated equilibria etc) in a fashion that … Continue reading A Darwinist responds to KF’s challenge