in thread "How many civilizations are there ?": I think you are missing his more fundamental point. To (fittingly) put your point about "civilization" in analogous terms: Even though there isn't a single coherent definition of a term like "chair", it is still useful to try and whittle down a meaning of ... 2mo ago (collapse hidden) log in to judge received 7.1 7.1 I think you are miss (view hidden) log in to judge received 7.1 7.1