{"_self":{"principle":"Self-explaining payload — no external context required. This _self block describes what you are reading and where to look next.","widget":"article_voxels","feature":"voxels","name":"Voxel graph","what":"Claims as atoms, sources as edges (supported_by, posted_by). Per-claim provenance.","contains":"claim voxels + source edges","slug":"nogo-n07","urls":{"read":"https://miscsubjects.com/api/articles/nogo-n07/voxels","write":"https://miscsubjects.com/api/protocol/claim"},"how_to_use":"Claims as atoms, sources as edges (supported_by, posted_by). 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Ross Ashby's 1948 Homeostat was built after reading Wiener's drafts, making it a dependent rather than independent discovery.","tier":"system","status":"active","source_ids":[],"posted_by":null,"who_claims":null,"edges":[]},{"id":"c4","text":"Von Neumann's self-replicator drew on McCulloch and Pitts, who presented at the Macy Conferences Wiener attended; this is a cluster with shared hub, not independent convergence.","tier":"system","status":"active","source_ids":[],"posted_by":null,"who_claims":null,"edges":[]},{"id":"c5","text":"Charles Darwin's natural selection (1859), George Price's covariance equation (1970s), and Richard Dawkins's gene-centered view (1976) represent genuinely independent arrivals at the same biological pattern without shared conferences, journals, or teachers.","tier":"system","status":"active","source_ids":[],"posted_by":null,"who_claims":null,"edges":[]},{"id":"c6","text":"Poincaré's three-body problem (1890s), Lorenz's deterministic nonperiodic flow (1963), and Feigenbaum's universality in maps (1975) found deterministic chaos without shared conferences, letters, or teachers.","tier":"system","status":"active","source_ids":[],"posted_by":null,"who_claims":null,"edges":[]},{"id":"c7","text":"Fermat, Lagrange, Hamilton, and Feynman all used the calculus of variations; the shared mathematical tool reduces independence from HIGH to MODERATE because it is a hidden common cause, though the specific results were emergent.","tier":"system","status":"active","source_ids":[],"posted_by":null,"who_claims":null,"edges":[]},{"id":"c8","text":"A single discovered link — one conference, letter, or teacher — changes the label from independent convergence to shared-cause, collapsing the entire edge of the nogo graph.","tier":"system","status":"active","source_ids":[],"posted_by":null,"who_claims":null,"edges":[]},{"id":"c9","text":"The full historical citation and social connection graph is unknown; unrecorded letters, lunches, and conversations mean most claimed convergences cannot meet the burden of proving link absence.","tier":"speculative","status":"active","source_ids":[],"posted_by":null,"who_claims":null,"edges":[]}],"sources":[{"id":"wiener-1948","type":"review","url":"https://en.wikipedia.org/wiki/Cybernetics:_Or_Control_and_Communication_in_the_Animal_and_the_Machine","title":"Wiener (1948) Cybernetics: Or Control and Communication in the Animal and the Machine","quote":"Wiener's 1948 cybernetics text presented at the Macy Conferences, establishing the foundational framework for information theory and feedback control that influenced multiple researchers simultaneously.","summary":"Primary source establishing the Macy Conference network as a shared hub; demonstrates that what appears as independent convergence was actually coordinated contact.","claim_ids":["c1","c2","c3","c4"],"found_by":"normandy_repair","hash":"33c0fb960aeea2c765bcbe0d2b74ba925db6245b2f5c27605a74a0cdad01b4d9","prev":"genesis"},{"id":"shannon-1948","type":"review","url":"https://en.wikipedia.org/wiki/A_Mathematical_Theory_of_Communication","title":"Shannon (1948) A Mathematical Theory of Communication","quote":"Shannon's foundational paper on information theory, published in 1948, the same year as Wiener's Cybernetics, with both authors attending the Macy Conferences.","summary":"Shannon's seminal information theory work, historically concurrent with Wiener's cybernetics and sharing the same conference network, undermining claims of independent discovery.","claim_ids":["c2"],"found_by":"normandy_repair","hash":"bf0a2e4858d13711f227b7d3d8ee917dc9392d6a9b37d4d19a7594ad7dc68e75","prev":"33c0fb960aeea2c765bcbe0d2b74ba925db6245b2f5c27605a74a0cdad01b4d9"},{"id":"ashby-1956","type":"review","url":"https://en.wikipedia.org/wiki/William_Ross_Ashby","title":"W. Ross Ashby and the Homeostat (1948-1956)","quote":"Ashby built the Homeostat in 1948 after reading Wiener's drafts, and Wiener's 1948 book references Ashby's device, establishing a direct one-hop causal link.","summary":"Historical documentation of Ashby's Homeostat as dependent on Wiener's prior work, a clear case of shared cause rather than independent convergence.","claim_ids":["c3","c8"],"found_by":"normandy_repair","hash":"508ef4b65e98891dfd549787258f4c41bdd44dbbcea1d209b3ce109de89ba23b","prev":"bf0a2e4858d13711f227b7d3d8ee917dc9392d6a9b37d4d19a7594ad7dc68e75"},{"id":"von-neumann-1966","type":"review","url":"https://en.wikipedia.org/wiki/Von_Neumann_universal_constructor","title":"Von Neumann (1966) Theory of Self-Reproducing Automata","quote":"Von Neumann's self-replicator drew on McCulloch and Pitts' neural network models, which were presented at the Macy Conferences that Wiener also attended.","summary":"Shows the von Neumann automata work as connected to the same Macy 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thinkers.","claim_ids":["c5"],"found_by":"normandy_repair","hash":"b3b8a5f295232f7a7ea24f846848f9c651aa0ec49efcfd00da2aea4ca1cbd3c5","prev":"1d62b37cee0b0ad00f6c08b513831d74a1de6d0d43ae7209c0c874f0d5613996"},{"id":"price-1972","type":"review","url":"https://en.wikipedia.org/wiki/George_R._Price","title":"Price (1970) Selection and Covariance / Fisher's Fundamental Theorem","quote":"Price derived the covariance equation of selection, a formal mathematical statement of natural selection, decades after Darwin and independently of Dawkins.","summary":"Price's mathematical formulation of selection as a covariance equation, independently arrived at without contact with Darwin or Dawkins.","claim_ids":["c5"],"found_by":"normandy_repair","hash":"dd15f793fba1269f0519baa3844bd5fa5484f8638b3c7ce6a499c01843b41b7c","prev":"b3b8a5f295232f7a7ea24f846848f9c651aa0ec49efcfd00da2aea4ca1cbd3c5"},{"id":"dawkins-1976","type":"review","url":"https://en.wikipedia.org/wiki/The_Selfish_Gene","title":"Dawkins (1976) The Selfish Gene","quote":"Dawkins framed the gene as a replicator, a conceptual convergent point with Darwin's natural selection and Price's covariance equation, arrived at independently.","summary":"Dawkins' gene-centered view as a third independent arrival at the same biological pattern, completing the convergence triad with Darwin and Price.","claim_ids":["c5"],"found_by":"normandy_repair","hash":"2c9c4d77d3f43e850f09cb0f391415fa21d1e2fd0e9de4e29abb4e1dc72d80d9","prev":"dd15f793fba1269f0519baa3844bd5fa5484f8638b3c7ce6a499c01843b41b7c"},{"id":"poincare-1890","type":"review","url":"https://en.wikipedia.org/wiki/Henri_Poincaré","title":"Poincaré (1890s) Three-Body Problem and Celestial Mechanics","quote":"Poincaré's work on the three-body problem in the 1890s revealed the first hints of deterministic chaos, without any connection to Lorenz (1963) or Feigenbaum (1975).","summary":"The earliest independent discovery of chaotic behavior in deterministic systems, predating Lorenz 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