I've been going through Sapiens by Yuval Noah Harari lately, and one of the common themes in the early chapters of his book is the role shared myths play in human cooperation. His argument essentially is it's these shared myths (whether they be religious myths, the myth of romanticism, the myth of the dollar, the myth of countries or corporations, or anything really which is primarily a creation of the human mind) which allow for large scale human cooperation, and that for these myths to be effective they must have some degree of true believers. I understand that our cultural norms and mores are rooted in religious tradition, but my belief has always been that if we disposed of the mythological portion of religious beliefs we wouldn't need to dispose of everything else. However, if Harari's argument is accepted as true, then it seems that either the religious myths would need to be replaced with some other myth that we could rally around, or that those religious myths are necessary for the continued flourishing of society. I have not been able to think through this completely yet, and I was wondering what others' reaction to this argument is.