We present a unified geometric framework that derives all of fundamental physics from a single axiom: unbounded openness exists. From this foundation, we demonstrate that bidirectional motion necessarily creates polarity, manifesting as positive and negative poles at infinity. The collision of these poles at the Big Bang initiated a neutralization process that continues today as an expanding sphere of defined space. The meeting of opposite poles produces multiple quantum outcomes rather than uniform neutralization. These varying degrees of neutralization completeness naturally explain the cosmic distribution of dark energy, dark matter, and ordinary matter. Failed neutralization creates ongoing tension driving accelerating expansion. Near-complete neutralization produces weakly-interacting massive particles. Incomplete neutralization with residual charge creates ordinary matter and forces. From this geometric picture, we derive general relativity as warping of the defined field, quantum mechanics as actualization states, and all four fundamental forces as different aspects of neutralization dynamics. Quantum entanglement emerges from particles sharing common origin events. Black holes, gravitational waves, particle types, and cosmological structure all follow as necessary geometric consequences. The framework explains why certain physical laws are deterministic while specific numerical values remain contingent on quantum randomness at the initial collision.