Submitted for review and comment prior to publication. Quantum Filament Theory (QFiT) is a unified physical framework in which all known phenomena -spacetime, matter, forces, and quantum behavior—emerge from a fundamental cubic lattice of irreducible one dimensional filaments carrying quantized tension and phase. Within this structure, gravity arises from geometricstrain, quantum mechanics from coherent phase dynamics, and gauge interactions from junction-basedfilament couplings. Particle masses and interactions are determined by resonance geometry, not fieldsor potentials. QFiT successfully unifies the four fundamental forces, accurately reproduces particles, resolves majoroutstanding problems in physics, including the hierarchy problem, dark matter and dark energy origins,quantum gravity, the arrow of time, black hole entropy, and the nature of wavefunction collapse. It isultraviolet finite, background independent, and offers testable predictions including: gravitational waveechoes, jet structure deviations, and cosmic structure anomalies. This treatise presents a complete, mathematically formal, and physically motivated development ofQFiT—from first principles to experimental consequences.