New physical thresholds above M/sub W/

Discusses the viewpoint that the standard SU(3)*SU(2)*U(1) model is only a low-energy manifestation of a more fundamental theory. Topics dealt with are: new thresholds beyond the mass of the Higgs boson, and associated violation of lepton and baryon number; chirality and anomaly constraints; a prediction for the top quark mass and the value of the light quark mass scale; heavy fermions and cosmological baryon production at temperatures near 1 TeV. (13 refs).