docs: brain-inspired (dual-hemisphere) design philosophy#168
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Add the binding design commitment to GOVERNANCE.md and a foundational-model section to ARCHITECTURE.md: ZettelForge is modeled on the brain by deliberate decision. A symbolic left hemisphere (typed, STIX-aligned knowledge graph with rule-based inference) is the authority of record; an associative right hemisphere (blended vector and graph retrieval with GraphRAG-style synthesis) explores and proposes; both rest on a shared evidence-grounded, time-stamped data model. Add docs/explanation/design-philosophy-dual-hemisphere.md: the research foundation (Cognitive Data Model, cortical semantic cognition, GraphRAG and agentic-RAG literature, CTI knowledge-graph and standards work), how ZettelForge embodies it, the named open increments, and contributor doctrine. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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What changed
GOVERNANCE.md: adds a binding Design Commitment: Brain-Inspired Memory Architecture.ARCHITECTURE.md: adds a Foundational Model: Two Hemispheres section.docs/explanation/design-philosophy-dual-hemisphere.md: new explainer covering the research foundation (Cognitive Data Model; cortical semantic cognition; GraphRAG and agentic-RAG literature; CTI knowledge-graph and standards work), how ZettelForge embodies it, the named open increments, and contributor doctrine.docs/index.md: pointer to the new explainer.Why
ZettelForge is modeled on the brain by deliberate decision, grounded in published cognitive-science and threat-intelligence research. This makes that rationale explicit and citable for contributors. Synthesized from Pieris 2025 (Cognitive Data Model, arXiv:2503.20041) and the GraphRAG / CTI knowledge-graph literature.
Notes