[jhbadger]

"is implies ought" is indeed a fallacy, and even learning that biological instincts, say, support conflict, doesn't mean conflict is good. On the other hand, it is a good thing that we understand that humans and their underlying instincts have been more or less unchanged since the dawn of humanity as evolution works on very long time scales. "Cavemen" had as much internal life as we do ourselves -- they just didn't have as much technology.