BCT Letter 195 derives the observed 7-sigma left-hand preference in galaxy spin orientation from the OHC chiral symmetry breaking mechanism. The BCT vacuum ground state — the Octet-Hopfion Condensate — carries a geometric handedness from the D4 lattice c/a = √2 asymmetry. This chirality propagates to large-scale structure via OHC phonon modes, producing a statistically significant parity violation in galaxy spin distributions. BCT Prediction #238: galaxy handedness asymmetry = 2α₀ = 1.482% above random, consistent with the LOFAR/Tully survey results. Zero free parameters
Michel Robert Cabrié (Sun,) studied this question.