{"slug":"paper-maturana-h-r-and-varela-f-j-1987-the-tree-of-knowledge-the-biological-roots-of-h","verification":{"valid":true,"entries":2,"head":"4ae6dfd29e59f349af28ec7f0293609c36ea2c517d395af39d311839d254c8ee"},"count":2,"sources":[{"id":"s1","type":"other","url":"https://uranos.ch/research/references/Maturana1988/maturana-h-1987-tree-of-knowledge-bkmrk.pdf","title":"The Tree of Knowledge bookmark PDF","quote":"All doing is knowing and all knowing is doing. Everything said is said by someone.","summary":"Key sayings and definitions from the 1987/1992 text.","claim_ids":["c1","c2","c4"],"found_by":"grok/grok-4.3","extra":{},"accessed_at":"2026-07-08T10:59:12.715Z","link_status":"http_510","quote_status":"unverified","prev":"genesis","hash":"4f0b8246007070a039dd931c64e11f74abccb055b95db6443b25ead0be5d619d"},{"id":"s2","type":"other","url":"https://www.media-ecology.org/resources/Documents/Proceedings/v10/v10-13-Hallowell.pdf","title":"Humberto Maturana and Francisco Varela's Contribution to Media Ecology","quote":"Structural coupling . . . is a history of recurrent interactions leading to the structural congruence between two (or more) systems (1992, p. 75).","summary":"Cites structural coupling definition and ethical extensions.","claim_ids":["c3"],"found_by":"grok/grok-4.3","extra":{},"accessed_at":"2026-07-08T10:59:12.715Z","link_status":"ok","quote_status":"unverified","prev":"4f0b8246007070a039dd931c64e11f74abccb055b95db6443b25ead0be5d619d","hash":"4ae6dfd29e59f349af28ec7f0293609c36ea2c517d395af39d311839d254c8ee"}]}