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The study of physical laws across five dimensions: spacetime plus probability. In 5D physics, every event exists not just at a spacetime coordinate but across a spectrum of probability branches, and physical laws govern how objects and energy distribute across these branches. 5D physics explains quantum superposition (particles exist across multiple probability coordinates until observed), wavefunction collapse (observation selects a specific probability branch), and why your keys seem to teleport (they briefly shifted to an adjacent probability coordinate). It's the physics of "Schrödinger's cat is both alive and dead—in different branches," of parallel universes that are physically real, of the multiverse as a physical system rather than a philosophical speculation.
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