The state evolved to finance war. (Thank you Napoleon.) But a city is a market.

The state evolved to finance war. (Thank you Napoleon.) But a city is a market. A market is a community of common interest. Beyond that, languages each imply metaphysical reality, and manners, ethics and morals imply the rules of human coordination.

Small is better. More peaceful. More prosperous. More egalitarian. If you want a ‘community’. It has to be small.