Derivation of Fundamental Constants from the (6+2)-Dimensional Structure of Spacetime

We present a derivation of fundamental physical constants from a spacetime with (6+2) dimensions: six spatial and two temporal. Each temporal dimension corresponds to a three-dimensional spatial manifold, producing a natural 6+2 structure. From this geometric framework, key physical constants emerge without free parameters. The model derives the fine structure constant, the Planck-electron mass ratio, and the Planck constant from geometric and topological properties of spacetime. Additional results include a formula for quantum decoherence times and a unified interpretation of decoherence and wavefunction collapse as elastic relaxation processes in spacetime. Key Results • Fine structure constantα ≈ 1/137.05 (error <0.01% vs CODATA) • Planck-electron mass ratiomₚ/mₑ ≈ 2.38935 × 10²² (error <0.001%) • Planck constantℏ = mₚ c lₚ (derived from lattice structure) • Electric chargee = √(4πε₀ℏcα) Framework Summary The model proposes: • spacetime with 6 spatial + 2 temporal dimensions• bidirectional time (t₊ future, t₋ past)• particles as topological solitons in a Planck-scale FCC lattice• fundamental constants emerging from topology and dimensional structure Contents of the Paper The full paper includes: dimensional structure of spacetime (6+2) derivation of the fine structure constant derivation of the Planck-electron mass ratio origin of the Planck constant electric charge as a derived quantity quantum decoherence formula relation between gravity and quantum collapse speculative energy constraints for temporal travel