The Unified Origin Theory

This work constructs a physical framework resting on two basic axioms: flat spacetime scalar background pressure field and linear shielding effect of baryonic matter. All core formulas are derived from axiomatic deduction, without any free fitting parameters.This field-pressure system achieves the unification of macroscopic gravitational rules, fundamental electromagnetic constants, galactic motion and microscopic quantum behaviors within a self-consistent theoretical logic. Multiple independent physical methods are used to calibrate the benchmark field pressure difference near the Earth’s surface.This model can interpret flat galactic rotation curves and cosmic void expansion without introducing hypothetical dark matter and dark energy, and forms a complete quantitative deduction system based on flat spacetime. It offers an alternative research perspective for comparative analysis with standard cosmological models.