“We shall overcome because the arc of the moral universe is long, but it bends toward justice,” Martin Luther King Jr. preached at Washington National Cathedral in March 1968. Robert Wright agrees, sort of, writing in the April Atlantic that “whether or not history has a purpose, its moral direction is hard to deny.” Wright’s essay is an 8,000-word argument that the three great monotheistic faiths may help create a more beneficent world through globalization.