@ChrisMayLA6 I loathe the term, which I suspect was designed to be pejorative. However, I suspect it is pretty accurate. Small communities based on an accurate version of Dunbar's number, say 500 people, will source food & energy, repair hygiene and primary care locally, with larger communities providing specialist services secondary services such as legal, hospital based services, and post primary education. I'm guessing cities will provide tertiary services within the sovereign city state?