The Universe from One Finite Quantum Cell: How Mittermeier Attractor Theory (MAT) connects vacuum structure, the electron, gravity, cosmology and horizons through a single finite architecture

Modern physics describes matter and spacetime with exceptional precision, yet electromagnetic strength, gravitational strength, cosmic composition and vacuum curvature still enter through separate empirical routes. Mittermeier Attractor Theory (MAT) reverses that explanatory order. It begins with a rigid arithmetic-topological seed, a five-state Weyl-Heisenberg register and a 40-channel response carrier, from which one small dimensionless state is constructed. In the frozen effective architecture, the same state selects the vacuum hierarchy, fixes an electromagnetic branch and electron-Planck hierarchy, yields an anchor-free gravity invariant, generates linked cosmological matter lanes and primordial targets, supplies a conserved pressureless dark source, and measures black-hole and de Sitter horizons in one entropy unit. The outputs are correlated descendants rather than independent coincidences, so disagreement in one sector propagates through the dependency network. The work establishes the finite mathematics, numerical closure and cross-sector readout structure. It concentrates the remaining fundamental task into a canonical noncommutative operator system, a Lorentz-covariant and radiatively stable continuum action, and a prospectively frozen blind prediction.