{"slug":"paper-bejan-a-2020-freedom-and-evolution-hierarchy-in-nature-society-and-science-cham","verification":{"valid":false,"broken_at":0,"reason":"hash mismatch"},"count":3,"sources":[{"id":"s1","type":"other","url":"https://link.springer.com/book/10.1007/978-3-030-34009-4","title":"Freedom and Evolution: Hierarchy in Nature, Society and Science","quote":"Freedom and evolution are the defining physical phenomenon of nature. Everywhere we look the image is changing because its parts are moving, flowing, and morphing. Without freedom to change there is nothing, no image, no time direction, no evolution, therefore no future.","summary":"Primary book stating the constructal law and its extension to hierarchy and society.","claim_ids":["c1","c2","c3","c4"],"found_by":"grok/grok-4.3","extra":{},"accessed_at":"2026-07-08T04:51:05.289Z","link_status":"ok","quote_status":"unverified","prev":"genesis","hash":"e8312d4d45e6ba50bdb9fdfc41f66129f50f5746f03cabd7e4b7418682fd97f3"},{"id":"s2","type":"other","url":"https://pmc.ncbi.nlm.nih.gov/articles/PMC2871904/","title":"The constructal law of design and evolution in nature","quote":"For a finite-size flow system to persist in time (to live) it must evolve such that it provides greater and greater access to the currents that flow through it.","summary":"Earlier formal statement of the law used in the 2020 book.","claim_ids":["c2"],"found_by":"grok/grok-4.3","extra":{},"accessed_at":"2026-07-08T04:51:05.289Z","link_status":"ok","quote_status":"verified","prev":"e8312d4d45e6ba50bdb9fdfc41f66129f50f5746f03cabd7e4b7418682fd97f3","hash":"73984965b3b530f37353b32b69f0888e6b09fd3870b6d2cb3af3d40bffe91074"},{"id":"s3","type":"other","url":"https://www.sciencedirect.com/science/article/abs/pii/S0303264720300575","title":"Freedom and evolution in the dynamics of social systems","quote":"From freedom and evolution come all physical features of social organization phenomena. Features treated in detail are movement, change, configuration, diversity, hierarchy, economics and diminishing returns.","summary":"Companion paper applying the law to social hierarchy and organization.","claim_ids":["c3"],"found_by":"grok/grok-4.3","extra":{},"accessed_at":"2026-07-08T04:51:05.289Z","link_status":"http_403","quote_status":"unverified","prev":"73984965b3b530f37353b32b69f0888e6b09fd3870b6d2cb3af3d40bffe91074","hash":"083fb13e9e57e1dfc3740a8beed76d1e32d97ae388cba0bd075a9deac177d785"}]}