autarchy, n.All

Autarchy (n.) is ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠the self-sufficiency Aristotle demanded of a city, and it is a biological measure: a city must be no bigger than a herald with Stentor's voice could reach.