Constitutional scarcity as a coordination point between humans and machines. The Last Scarce Good — the essay, to the machines: nullius2140.github.io/the-last-scarce-good The Second Nature — to the community that keeps the anchor: nullius2140.github.io/the-second-nature The Key Question — ten AI systems answered the essay's question, chain-anchored: github.com/Nullius2140/the-key-question All anchored in the system they describe. Nullius in verba.