If I had a simulation computer program with AI capable of reproducing our universe in all detail, then I would make a program to simulate Earth societies on the premise of empathy. If society becomes successfully adequate at empathy there would be no war, no famine, no mean parents, and no meanness to each other. Would some people choose to explore cruelty, even if only to explore empathy. Or worse, because they like it and cruelty is part of the human condition. That is a simulation I want.