{ "schema_version": "1.0", "canonical_url": "https://transduction.systems/entries/publication_fpcs_013/", "release": "0.37", "citation": "Taylor, B. P. (2026). The Chemical Basis of Morphogenesis. The Necessary Tangle, release 0.37. https://transduction.systems/entries/publication_fpcs_013/", "licence": "CC BY-SA 4.0 for original atlas text and data; linked works retain their own terms", "entry": { "id": "publication_fpcs_013", "label": "The Chemical Basis of Morphogenesis", "entity_type": "publication", "description": "Turing tests which spatial disturbances grow when reaction rates and diffusion couple locations. The calculation concerns onset near equilibrium; nonlinear development and geometry matter for the eventual form. 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The calculation concerns onset near equilibrium; nonlinear development and geometry matter for the eventual form. The mechanism is proposed through idealised chemistry, not established for a particular organism.", "canonical_definition": "A mathematical proposal for how local chemical reactions and diffusion can destabilise a nearly homogeneous state and generate spatial concentration patterns.", "why_it_matters": "It prompts a precise question: which interactions could amplify a difference that was initially small? A pattern need not have been specified as a whole for a model to produce it.", "context_and_lineage": "The paper treats discrete cells and a continuum as alternative idealisations. Its ring is chosen for mathematical convenience. The suggested biological interpretations remain hypotheses in this source account.", "editorial_note": "Primary-source exposition and original model examples are distinguished from the explicitly fictional editorial inquiries and transfer questions. These new accounts await human editorial acceptance. The earlier catalogue review supported membership only.", "reviewed_by": "", "reviewed_at": "", "key_distinctions": [ "Stability against a uniform change differs from stability against spatial modes. Diffusion does not make every reacting system unstable.", "A fastest-growing mode concerns early growth; it does not alone determine the final large-amplitude form.", "Disturbances seed departures, while the reaction, diffusion, and permitted geometry constrain their growth." ], "historical_lineage": [], "logical_antecedents": [], "dependent_subsequents": [], "practice_connections": [ "Original model example: § 10 uses twenty cells and two hypothetical reacting substances. Its numerical run varies a catalyst parameter; at the final γ=0 a slightly stable uniform state and stable patterned equilibria coexist. This is a constructed calculation, not an observed embryo.", "Fictional editorial inquiry: specify a local workload-amplification rule and cross-team exchange rule for initially similar service teams. Name the units, network, disturbance, and observation that could falsify the proposed mechanism.", "Editorial transfer limit: people, institutions, strategic responses, and meanings do not become chemical substances. 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