This idea is beautiful, but not very original. Just read the Bible, the Old Testament, and then conclude the reading with the closing of the New Testament: the Apocalypse. Today's challenges transcend borders. Can history show us how to cooperate? Global problems require global answers. And we have a lot of global problems. Is a single unified authority, a world government, needed to solve them? Is it even feasible? Rather it depends on what we mean by the sentence. An emperor with a single empire? Some form of democratic federal government of the world?