I enjoy listening to Harari and agree with in most cases he shares. However, after listening to what he says about tribalism and nationalism in this video, I am compelled to question the wisdom of his arguments more stringently than I used to. He obviously still clings to metaphysical thinking so he did not appreciate that the law of nature transforms tribal societies to national ones. The two (tribal and national) societies are qualitatively different in that once a tribal group achieves national one, the national feeling takes over the tribal one.