That is the thing, though. Violence had social norms around it. It was not the case that you could escalate forever. I remember one message from a father to a

That is the thing, though. Violence had social norms around it. It was not the case that you could escalate forever. I remember one message from a father to a son, for example, that said "never throw the first punch unless he is X inches taller than you". Of course, this might have been a tad to noble for the time, but still, there were norms.