We propose a fundamental paradigm shift in cosmology, transitioning from particle-based reductionism to a unified environmental-dynamic framework: Chien’s Hydrodynamic Cosmology (CHC). We define the (3+1)-dimensional spacetime as a dynamic membrane embedded in a 5D Superfluid Bulk governed by a Bulk Background Potential Field (BBPF).Core mechanisms in Version 7.5 include: (1) Shock-Driven Inflation: The Big Bang is identified as a Quantum Cavitation event, and Inflation is driven by a Bulk Shockwave from a neighboring universe’s topological eversion. (2) EINC (Environmentally-Induced Nonlinear Collapse): In the early high-pressure regime (z > 100), massive stars undergo "Titan-like" total-mass implosion, explaining the "Black Hole First" origin of mature galaxies (Virgil, Alacananda). (3) Metric Wakes and Trans-membrane Locking: Rogue singu-larities (e.g., RBH-1) are identified as being dragged by adjacent parallel universes, leaving a persistent gravitational furrow ("Metric Wake") in the viscous membrane. (4) The Chien Drag: Identifying Dark Matter as large-scale Spacetime Vorticity, fundamentally arisingfrom the reactive impedance of the vacuum. (5) The Chien Eversion: A topological phase transition (S.Y.N.C.) that replaces the Big Crunch singularity with a smooth geometric inversion via a Klein Bottle topology. We validate these mechanisms against 2026 data, including NASA’s Cloud 9, GW231123,and persistent null results in sterile neutrino searches. Statistical analysis using the BIC demonstrates that CHC possesses superior long-term sustainability over the increasinglyad-hoc ΛCDM model.Keywords: Shock-Driven Inflation, Quantum Cavitation, Chien Eversion, EINC, BBPF, Chien Drag, GW231123, Metric Wake.
Hung-Hsiang Chien (Wed,) studied this question.