Evolution or Not?
Apparently, long ago in Africa, rival tribes would line up their fiercest warriors on a hill, armed with spears and shields, and would shout insults at their enemies on the next hill, who would reciprocate. After a decent amount of time, each side would decide they had the upper hand in insults and retire, having “won” the battle. Nothing was gained or lost. No one compromised, was convinced, or persuaded. Alliance was out of the question. But they did develop increasingly harsh insults, each side believing in its moral superiority.
Today, we in the US call this “Congress.”