Windmill Process: 90° Symmetry in Discrete Geometric Line Bisection — E8 Intelligence Research

FINDING: Windmill process parity invariant in discrete geometry rotating line bisection | MATH: The windmill method decomposes vector components via two-angle rotation; bisection of a line by compass and straightedge yields exact midpoint via perpendicular bisector construction; discrete differential geometry enforces consistency as integrability condition (e.g., discrete zero-curvature representation). | CONNECTION: The rotating bisector process inherently involves 90° symmetry (perpendicular bisector) and 180° rotation parity; discrete integrability often links to root systems (e.g., A_n, D_n) and crystallographic lattices; no direct golden ratio or base-60 constants appear. | DEPTH: 4 — The windmill process is a pedagogical tool for vector decomposition, not a novel invariant; the bisection method is classical Euclidean construction; discrete differential geometry's consistency principle is deep but not specifically tied to the windmill or bisection. The combination suggests a poten Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com