Spacetime Substantivalism 26: The 1.3-Billion-Light-Year Audit of Cosmic Entity Uniformity by Gravitational Waves — The Electromagnetic Photonic Materiality of the Logical Matrix, the Impossibility of Superluminal Speed, and the Origin and Physical Mechanism of Inflation (Appendix: The Outer-Inner Relationship Between Geometrical Spacetime and Substantial Spacetime) | Synapse