much in the actual belief in things that perhaps don't exist, but it is from the cohesion, the group cohesion that that can yield if there are many people for whom that belief is shared, then all of a sudden you've got a stronger group bonding? Does that hold any weight for you at all? There is a folk theory of evolution that adaptations are all for group cohesion because whenever there is some mysterious aspect of human psychology for which it's not clear what the adaptive value is, people will say, "Well, it fosters group cohesion."