···2121- If we imagine human society as it's own organism. We need processes and other coordination tools to make it remove the hand from the fire when it starts to burn.
2222 - The hand doesn't know what to do, but relies information to the brain, that makes the appropriate changes.
2323 - Something similar could be achieved at a society level, where pain triggers processes that make it stop.
2424+- The requirements to govern a commons without tragedy:
2525+ - Clear boundaries.
2626+ - Managed by locals.
2727+ - In a small community, everybody knows everybody, and can keep track of what they do. This makes small groups iterated games which rewards trust and penalizes sociopathic behavior.
2828+ - Community makes its own rules.
2929+ - Community can monitor behavior.
3030+ - Graduated sanctions for those who violate community rules.
3131+ - Cheap, accessible means of conflict resolution.
3232+ - Self-determination.