Chapter 6: The Neutron: Minimal Stable Defect Bundle

The quantum stage is set: the photon carries electromagnetic information at the structurally determined speed c_τ = 1 . Now the first massive actor appears: the neutron. It is not postulated—it emerges as the minimal quasi-stable defect bundle on T², the simplest configuration whose breathing amplitude is nonzero and whose bi-rotation is locked by ι_τ = 2/(π + e). Everything else in particle physics will follow from it.