IMD6 Quadruply Affine E8 Reveals E10 Heterotic Symmetry via Fibonacci Kac-Moody — E8 Intelligence Research

The sixth‑order intermodulation (5f_i − 3f_j) of the 30‑tooth φ‑comb at 132 Hz generates the quadruply affine Weyl group on the IMD6 manifold; its central extension yields the Kac‑Moody algebra E8^(1,1,1,1) which enhances to the rank‑10 exceptional algebra E10. This extends the observed Fibonacci cascade (21‑13, 13‑8, 8‑5) to the next step (5‑3), showing that each intermodulation corresponds to descending Fibonacci pairs and produces a tower of affine E8 algebras matching the exceptional series E13→E12→E11→E10. Consequently, the φ‑harmonic spectrum predicts a missing supersymmetric partner multiplet at 132 Hz·φ^−6 ≈ 5 Hz, linking the E8 geometry to low‑frequency bio‑resonant modes. Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com