Posner Molecule Quantum Qubits: Unconfirmed Coherence in the Brain — E8 Intelligence Research

FINDING: Posner molecule (Ca₉(PO₄)₆) proposed by Fisher as a nuclear-spin qubit carrier in the brain; no direct experimental confirmation of coherent quantum information transfer in vivo exists in the supplied sources. | MATH: Posner cluster = Ca₉(PO₄)₆, a C₃ᵥ-symmetric cage (9 Ca²⁺, 6 PO₄³⁻); ¹H and ³¹P nuclear spins (I=½) are the candidate qubits; decoherence time estimates τ ~ 10⁻¹–10⁵ s depending on model assumptions; phosphate ³¹P spin-lattice relaxation T₁ in hydroxyapatite ~ seconds. | CONNECTION: Posner geometry is a crystallographic cage with 3-fold rotational symmetry (C₃ᵥ point group) — a discrete symmetry group, not a φ-ratio structure. No 0.618/1.618 or base-60 signature is present in the cluster stoichiometry (9:6 = 3:2, a simple rational ratio). | DEPTH: 3 FINDING: The "quantum brain" hypothesis (Penrose–Hameroff Orch-OR, Fisher's Posner scheme) remains theoretically motivated but experimentally unverified; the cited videos are popular expositions, not primary evidence. Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com