This paper introduces the Grand Open-system Model of Circulation (GOMC), a transformative effective field theory that reinterprets spacetime as a physical superfluid medium. Unlike standard closed-system models, GOMC posits that our universe is an open system exchanging energy and information with a higher-dimensional "Bulk." By applying the dynamical master state equation, this work provides unified, non-singular resolutions to seven foundational crises in physics: the black-hole information paradox, thermodynamic heat death, the Big Bang singularity, matter-antimatter asymmetry (baryogenesis), the hierarchy problem, the strong CP problem, and the quantum measurement problem. Furthermore, the model accounts for the cosmological constant problem and the Hubble tension as natural consequences of superfluid hydrodynamics, eliminating the need for dark matter or dark energy. The theory is validated against SPARC galactic rotation curves and Event Horizon Telescope (EHT) data, offering specific, falsifiable predictions for future observatories like ngEHT, LISA, and CMB-S4.