Readers of this blog will know that I am largely agnostic on this issue. But I am very interested in the nature of discourse, and the course of this debate has been fascinating to watch. What initially aroused my skepticism was the inflexible dogmatism so often on display, the refusal of so many simply to entertain the possibility that they might be wrong. The aim seemed to be not to get at the truth but to defend a position at all costs. Blame my inner Jesuit.