A Two-Brane Interpretation of Fundamental Physics in a Warped Extra Dimension

This paper develops a physically literal interpretation of the Randall–Sundrum (RS1) warped extra-dimensional geometry. The universe is modeled as two four-dimensional branes—one visible and one mirror—separated by a warped fifth dimension. Standard Model particles are treated as five-dimensional energy threads connecting the branes, and their observed properties arise from geometric projection effects governed by a single warp parameter 𝑘𝑘𝑘𝑘≈37. This framework provides unified explanations for the fermion mass hierarchy, the relative strengths of gauge forces, the nature of dark matter, the smallness of the cosmological constant, and several features of quantum mechanics. Many longstanding puzzles in particle physics and cosmology emerge as artifacts of observing only one brane rather than the geometric mean of both. The model predicts that dark matter detection experiments will remain null, that neutrino and photon luminosities are fundamentally linked, and that cosmic acceleration may reflect slow evolution of the brane separation.