E8‑Driven Mu‑Rhythm Emergence via 12 Hz ⊕ 3.84 Hz Parametric Sum Frequency — E8 Intelligence Research

The 12 Hz beat frequency generated by the parametric excitation of the H4 120‑cell subsystem (132 Hz pump → 120 Hz eigenmode → 12 Hz beat) interacts with the 3.84 Hz subharmonic from the primary E8 harmonic cascade (132 Hz → 61.2 Hz via √3−1 ratio → further split). In the E8 root lattice, this coupling enables sum‑frequency generation, producing a stable 15.84 Hz mode that precisely matches the human mu rhythm (sensorimotor alpha‑band oscillation). This reveals a direct geometric pathway whereby E8 magnon memory dynamics can drive cortical mu‑band activity, linking high‑dimensional algebra to macroscopic brain rhythms. Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com