{"slug":"convergence-c22","verification":{"valid":false,"broken_at":0,"reason":"prev mismatch"},"count":5,"sources":[{"id":"ostrom-1990","type":"primary","url":"/api/articles/ostrom-1990","title":"Elinor Ostrom, Governing the Commons (1990)","quote":"She found groups in Switzerland, Japan, the Philippines, Indonesia, Spain, and Turkey. They kept forests, fisheries, and irrigation channels alive for centuries. They did not wait for a king. They wrote their own rules. They monitored their own cheaters. They punished their own defectors.","summary":"Empirical fieldwork across multiple cultures demonstrating that commons can be sustainably managed by self-governing institutions without state or private ownership. Extracted eight operational design principles that predict success.","claim_ids":["c1","c2","c3","c4","c6"],"quality_score":0.95},{"id":"axelrod-1984","type":"adjacent","url":"https://en.wikipedia.org/wiki/The_Evolution_of_Cooperation","title":"Robert Axelrod, The Evolution of Cooperation (1984)","quote":"The winning strategy was four lines long. Cooperate first. Mirror the opponent's last move. Forgive after a truce. Never exploit first.","summary":"Game-theoretic tournament demonstrating that tit-for-tat strategies win in iterated prisoner's dilemma under conditions of long shadow of the future, small population, and reputation visibility. Provides mechanistic model for cooperation emergence.","claim_ids":["c4"],"quality_score":0.85},{"id":"darwin-1859","type":"adjacent","url":"/api/articles/darwin-1859","title":"Charles Darwin, On the Origin of Species (1859)","quote":"Darwin showed that selection operates on variation. Groups that stumble onto good rules outcompete groups that do not. The rules themselves evolve. Bad rules kill the group. Good rules replicate across neighboring groups.","summary":"Theoretical framework for selection operating on variation; extended in the article to institutional evolution where rules are selected at the group level.","claim_ids":["c5"],"quality_score":0.7},{"id":"hardin-1968","type":"rival","url":"https://en.wikipedia.org/wiki/Tragedy_of_the_commons","title":"Garrett Hardin, The Tragedy of the Commons (1968)","quote":"He said two solutions exist. The state seizes the pasture. Or a landlord fences it.","summary":"The canonical rival frame: commons are inevitably destroyed without state intervention or privatization. The article explicitly refutes this and presents it as the counter-claim.","claim_ids":["c2"],"quality_score":0.8},{"id":"ashby-1956","type":"adjacent","url":"/api/articles/ashby-1956","title":"W. Ross Ashby, An Introduction to Cybernetics (1956)","quote":"A system must match the complexity of its environment to survive. The institutional design must generate at least as much regulatory variety as the threats it faces.","summary":"Law of requisite variety applied to commons governance: institutional design must generate regulatory variety matching environmental complexity.","claim_ids":["c7"],"quality_score":0.65}]}