The Observation Deck: The Zero-Loss Fixed Point of Existence

The zinc spark — the exocytotic release of Zn²⁺ at mammalian fertilisation — is identified as w₀, the zero-loss fixed point predicted by the SECS collapse algebra. PLCζ is the Banach contraction operator; Ca²⁺ oscillations are the iterations; the polyspermy block is the uniqueness guarantee. The geometric bridge from tetrahedron (2026q) to Möbius strip (2026f) is the Möbius kaleidocycle: an 11-tetrahedron chain whose internal cavity volume is 1.032 Planck volumes. The electromagnetic-to-gravitational force hierarchy closes from the tower polynomial alone: K¹⁷/√3 ≈ 1.224 × 10³⁶ against the measured ratio 1.236 × 10³⁶ — a 0.97% discrepancy with no fitted parameters. The exponent 17 is the polynomial coefficient–power sum (15) plus the quadratic degree (2). Zero has geometry.