The Cubic Grid of the Universe at the Planck Length Scale – Part 5: The 1/137 Constant

This fifth part of the work focuses on one of the deepest puzzles in modern physics—the origin of the dimensionless fine-structure constant (alpha ≈ 1/137). Within the context of the proposed model, a hypothesis is presented that this fundamental constant is not an accidental parameter of nature, but rather a direct consequence of the pure geometry of the spacetime lattice at the Planck scale.