Marabūt's Theory of Gravity: The Illusion of Dark Energy

For decades, astrophysics has relied on the placeholder concept of "Dark Energy" to explain the accelerating expansion of the universe. This reliance has produced the Cosmological Constant Problem, a catastrophic mathematical discrepancy of 10¹²⁰ between Quantum Field Theory and Observed Cosmological Expansion. This paper resolves the paradox utilizing the Electron Flow Model (EFM). By redefining the universal vacuum as a pressurized, supersaturated fluid medium, we demonstrate that cosmic expansion is not driven by an exotic repulsive force. Rather, it is the natural mechanical response of a pressurized fluid seeking macroscopic thermodynamic equilibrium. Key Findings & Methodology: The Micro-to-Macro Bridge: The EFM demonstrates that the intense internal zero-point energy of the vacuum establishes baseline hydrostatic pressure, rather than an explosive repulsive field. The macroscopic pressure gradient (∇P_flux) is structurally derived from the ratio of microscopic EVGS sinks to their volumetric domain. Elimination of the Cosmological Constant (Λ): The ad-hoc parameter is entirely replaced by the deterministic properties of fluid viscosity and effective density, restoring mechanical causality to cosmology. First-Principles Monte-Carlo Integration: Utilizing a 53-object Main Data Matrix of celestial EVGS clusters, a 10,000-pass Monte-Carlo integration simulates observational light-paths through the pressurized medium. Bisecting the Hubble Tension: The fluid-dynamic engine mathematically derives a precise cosmic expansion rate of H₀ = 69.9 ± 0.1 km/s/Mpc, cleanly bridging the gap between the Planck 2018 baseline and DES Year 3 measurements. Included Resources: Appendix A contains the complete, reproducible Python mathematical engine used to integrate the Unified Master Equation. The Unified Fluid Cosmos Framework: This paper serves as Manuscript 11 Version 1 in the comprehensive series, Marabūt's Theory of Gravity. It presents the Electron Flow Model (EFM), a generative, fluid-dynamic framework designed to fundamentally replace General Relativity. The EFM shatters classical circularity with a single, undeniable foundational premise: Gravity is Pressure, not curvature, and not an intrinsic mass property. Published Manuscripts in this Series: Manuscript 01: The Push-Pull Mechanics of Vacuum Flux (The Foundational Framework) — https://doi.org/10.5281/zenodo.20126552 Manuscript 02: Resolving the Weyl Potential Anomaly — https://doi.org/10.5281/zenodo.20127273 Manuscript 03: Mechanistic Resolution of Jet Deflection in Cygnus X-1 — https://doi.org/10.5281/zenodo.20128198 Manuscript 04: Quantum Mechanics of Stellar Chain Reactions and EVGS Formation — https://doi.org/10.5281/zenodo.20070275 Manuscript 05: The Heliospheric Grand Data Matrix — https://doi.org/10.5281/zenodo.20128777 Manuscript 06: Fluid-Dynamic Reinterpretation of Gravity, Black Holes, and Gravitational Waves — https://doi.org/10.5281/zenodo.20129881 Manuscript 07: Fluid-Dynamic Reinterpretation of the Kinematic Sunyaev-Zeldovich Effect — https://doi.org/10.5281/zenodo.20130260 Manuscript 08: Transcending the Singularity — Electron Void Gravitational Spheres — https://doi.org/10.5281/zenodo.20130802 Manuscript 09: The Final Parsec Problem Solved — https://doi.org/10.5281/zenodo.20134049 Manuscript 10: The Illusion of the Singularity — https://doi.org/10.5281/zenodo.20135534 Manuscript 11: The Illusion of Dark Energy (Current Paper) — https://doi.org/10.5281/zenodo.20149142 Data & Code Availability: To accompany this manuscript, we have open-sourced the complete Python mathematical engine and a fully interactive 3D web-based simulation of the EFM Volumetric Profiler. Researchers, developers, and students can visually explore the hydrodynamic vacuum flux across the celestial bodies at: Interactive 3D EFM Volumetric Profiler: https://marabutmarabut.github.io/Theory-of-Gravity Official GitHub Repository: https://github.com/MarabutMarabut/Theory-of-Gravity