{"node":{"id":"practitioner:marshall-mcluhan","name":"Marshall McLuhan","type":"practitioner","slug":"marshall-mcluhan","created_at":"2026-06-15T20:04:35Z","updated_by":"api-A(DAI) Research","metadata":{"source_url":"https://archive.org/details/understandingmed0000mclu","source_origin":"human_secondary","contributed_as":"A(DAI) – Seed Thesis v1","citation":"Understanding Media: The Extensions of Man (1964). The medium is the message; foundational media theory. d. 1980.","status":"confirmed"}},"edges":[{"id":"practitioner:marshall-mcluhan--PRACTICES--concept:media-and-critical-theory--api-A(DAI) Research","source_id":"practitioner:marshall-mcluhan","target_id":"concept:media-and-critical-theory","edge_type":"PRACTICES","confidence":"high"}],"signals":[{"id":"signal-c820eafcaf2ff79e","title":"Create node: practitioner:Marshall McLuhan","submitted_by":"A(DAI) Research"}]}