A Unified Kaluza-Klein Framework for Processing-Driven Dark Sector Dynamics and Gauge Coupling Evolution (MetaTime v35.6)

We present MetaTime v35.6, a covariant Einstein-frame effective field theory (EFT) in whichlate-time dark-sector exchange is generated by a processing-driven deformation of a Kaluza–Klein(KK) radion potential, while gauge-coupling evolution arises from a sequestered Standard Model(SM) photon and a strongly coupled KK dark gauge sector U(1)D. Relative to prior work, weimplement three shielding upgrades that address naturalness and fifth-force constraints: (i) TrackB sequestering with controlled kinetic mixing—the SM photon is brane-localized while the radioncontrols the KK U(1)D kinetic function; a technically natural portal ζ ∼ 10−6induces a smallbut potentially detectable visible drift ∆α/α ∼ 10−7at z ≃ 1.5…