Eliezer,

Is the unstated premise of your comment that (at least a significant amount of) human psychology is genetic in origin? I agree with you that *given some preexisting psychology* there are restrictions on what memes are (feasibly) acquired. Without a premise along those lines, I don't see the relevance of what psychology can do. But any argument with that premise cannot address the question of why you attribute things to genes over memes in the first place.