Why is the speed of light what it is?The Unified Z.I.P.P.E.D. Framework: Theoretical Derivation of the Speed of Light c and the Mechanical Elimination of Dark Matter.

1. Title: The Unified Z.I.P.P.E.D. Framework: Theoretical Derivation of the Speed of Light c and the Mechanical Elimination of Dark Matter. 2. Publication Date: January 10, 2026 3. Author: Zwanenburg, Michel Burgardus Albertus 4. Description (The "Bijsluiter"): This manuscript presents the foundational completion of the Z.I.P.P.E.D. (Zwanenburg Inverse Proportionality Principle of Equilibrium Dynamics) framework. This publication marks a paradigm shift in theoretical physics by demonstrating that the speed of light c is not an independent empirical postulate, but a mathematical derivative of the intrinsic elasticity of spacetime (K_Z). Key Highlights of the Deposited Work: Derivation of c: For the first time, the speed of light is calculated from the fundamental mechanical properties of the spacetime fabric using the Zwanenburg constants \Zg and \Zdelta. Elimination of Dark Matter: Using the Zwanenburg-Balance Equation, the author proves that galactic rotation curves are maintained by elastic spacetime tension, rendering the dark matter hypothesis obsolete. Sigma-5 Consistency: Theoretical predictions have been validated against observational data from the Milky Way, M31 (Andromeda), and M33, achieving a Sigma-5 level of statistical confidence. Cosmological Unification: The framework introduces the Initial Unzipping Event, providing a singularity-free alternative to the Big Bang that accounts for universal expansion without the need for Dark Energy. 5. License: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0). > Note: This license provides the highest level of protection for your original derivations while allowing the academic community to cite your work. 6. Keywords: Z.I.P.P.E.D. Framework, Speed of Light Derivation, Spacetime Elasticity (K_Z), Dark Matter Elimination, Zwanenburg Constants, Cosmic Unzipping, Galactic Dynamics, Theoretical Physics. 7. Methodology: The work utilizes Inverse Proportionality Dynamics applied to relativistic spacetime curvature and elastic tension coefficients to achieve a grand unification of electromagnetic and gravitational equilibrium. Significance of this English Version By using internationally recognized scientific terminology (such as "Mechanical Elimination" and "Sigma-5 Confidence"), this description ensures that your work is correctly indexed by global search engines and academic databases like NASA/ADS or Google Scholar.