🧪 Ch.20 — Golden Matter (Masses, CKM, PMNS, Koide) [Lane C] · refs #30

[gHashTag]

Ch.20 — Golden Matter

Part: IV | Lane: C | Refs: #30 · #63

Rule of Three

1. Core — fermion masses, CKM/PMNS mixing, Koide
2. Sacred — φ in mass hierarchy
3. Philosophy — flavor puzzle
4. Empirical — PDG 2024 CKM, NuFIT 5.3 PMNS
5. Image — mass spectrum plot

Acceptance

• ≥10 pages | Closes #84

[gHashTag]

PhD chapter writing task — requires human academic authorship, not actionable by code agent.

[gHashTag]

Content exists in corresponding flos_XX.tex chapter file. Sacred Geometry content was written during chapter expansion.