After a pleasant sojourn with ISIS in my last post, it’s time to get back to the question of whether religion is an evolved adaptation. In my last post on the evolution of religion, I mentioned that there was a brewing conflict between group selection and inclusive fitness models in biology. Did I say conflict? I meant outright, total war. Far be it from me to over-dramatize a scientific quarrel, but this one doesn’t need to be over-dramatized; it’s already plenty dramatic. From massive letters of protest signed by hundreds of biologists to name-calling to bald accusations of irrelevance leveled against major intellectual figures, the group selection/inclusive fitness debates are the major scientific conflict of the young 21st century. Grab some popcorn, okay?