Bernal Spheres, Stanford tori and the return of the polis.

Some of our regular readers have great appreciation of how we rework concepts from classic antiquity to the modern world. For them we repost an older essay on city states.

Lagrangian Republican Association

This post was originally published on blogspot.com on April 23, 2012; updated June 13, 2014.

In this post I want to share some thoughts I have had for many years, concerning the ancient Greek city-state, or polis (plural poleis) and what we can learn from them.

Both O’Neill’s Island I and its main competitor the so-called Stanford torus are designed for some ten thousands of inhabitants, roughly the population of many small cities. And since space habitants of this kind can easily moved to any place within our (inner) Solar system, they can enjoy a great amount of isolation just by keeping distance from other space colonies. Furthermore the abundance of space resources makes economic self-sufficiency not only feasible but also very likely.

Here on Earth no country can turn to a policy of full autarky without paying a huge price. Effectively only very primitive societies can be autarkic without…

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