The MMA-DMF framework proposes a single-scale unification in which the multiparametric structure of the Standard Model and ΛCDM is replaced by one vacuum rigidity scale, M =100 TeV (fixed). Within this effective-field description, the scalar sector follows a generalized Langevin dynamics coupled to a non-Markovian vacuum bath. Thermodynamic consistency is enforced by a fluctuation–dissipation closure, while stability is maintained through explicit positivity and saturation constraints that eliminate unphysical negative dissipation and scalar-heating runaways. We summarize the resulting hadronic, cosmological, and multimessenger phenomenology and state binary falsification criteria for gravitational-wave echoes, negative-chirp transients, and high-energy transparency