Harvard law professor Noah Feldman’s book about Arab political self-determination and self-destruction is called The Arab Winter: A Tragedy. And he really means it. Grief emanates from every line of this reevaluation of the Arab Spring, which revisits the hope followed by disaster in Egypt and Syria; the utopian Islamism that produced the hellish dystopia of ISIS; and, perhaps most painful, the success in Tunisia that showed the other tragedies were not inevitable.