Generally, monotheism is favorable to a high level of organization, including complex theologies that don’t just morph a lot but are only changed with much deliberation or controversy. But did that state of affairs evolve so as to foster “cohesive unity,” as Harari suggests? Hard to say. Religion — especially propositional religion, like the monotheisms — can foster either unity or disunity. Monotheism has not been a force for unity in Northern Ireland or the Middle East.