Did Industry Cause Nations?

That is the title of an excellent post by Robin Hanson over on his Overcoming Bias blog.  A slice:

"Nation states still thrive on a widely held belief that “the world is naturally made of distinct, homogeneous national or tribal groups which occupy separate portions of the globe, and claim most people’s primary allegiance”. But anthropological research does not bear that out, he says. Even in tribal societies, ethnic and cultural pluralism has always been widespread. Multilingualism is common, cultures shade into each other, and language and cultural groups are not congruent. …"