Here is a question:Why is there so much peace in the world?You may think that the question is an unusual one, and you may even be mildly (or not so mildly) offended by it. After all, you may counter, the world is not particularly peaceful. Possibly one’s own life is mostly peaceful, but it hardly takes a cursory glance to know that the world at large is really not that peaceful. In early 2018, when this page was published,...