#+TITLE: Passepartout Neurosymbolic Engine — Design Decisions — SUPERSEDED
#+AUTHOR: Agent
#+FILETAGS: :notes:design-decisions:neurosymbolic:superseded:
#+CREATED: [2026-05-08 Fri]
#+SUPERSEDED: [2026-05-10 Sun]

This document has been consolidated into ~passepartout/docs/DESIGN_DECISIONS.org~. The unified document interleaves the neurosymbolic design rationale into nine thematic parts with a single narrative arc:

| Part | Topic | Key New Sections |
|------|-------|-----------------|
| I   | Foundation | Historical Lineage (McCarthy) |
| II  | The Two Brains | Hallucination Problem, 10-80-10, Brain/Education metaphor |
| III | Safety & Self-Preservation | Active Third Law, Layered Signal Authentication |
| IV  | The Symbolic Engine | Five Options, Chosen Path, Gate-to-Fact Bootstrap, LLM as Proposer, Cardinality Policies, Organic Ontology, Ontology Versioning, Sufficiency Criterion, Merkle DAG, Abstract Fact Store Interface |
| V   | Knowledge Sources | Semantic Wikipedia, MOMo Empirical Validation |
| VI  | Implementation Properties | Performance Scaling, Provenance as Product |
| VII | Engineering Infrastructure | REPL, Cybernetic Loop, Observability, Literate Programming, Eval Harness, MCP, Local-First, Token Economics, Time Awareness (carried over from existing) |
| VIII | Validation | Marcus, CREST, KiL philosophical validation; Competitive Argument |
| IX  | Open Questions | Fact language, human role, Wikidata scope, natural language interface, graph query performance |

Cross-references are preserved in:
- ~notes/passepartout-symbolic-engine-exploration.org~
- ~notes/passepartout-whitehead.org~
- ~notes/competitive-landscape.org~