  We argue that massless (lambda Phi^4)_4 is "trivial" without being entirely
trivial. It has a non-trivial effective potential which leads to spontaneous
symmetry breaking, but the particle excitations above the broken vacuum are
non-interacting. The key to this picture is the realization that the constant
background field (the mode with zero 4-momentum) renormalizes differently from
the fluctuation field (the finite-momentum modes). This picture reconciles
rigorous results and lattice calculations with one-loop and
Gaussian-approximation analyses. Because of "triviality", these latter two
methods should be effectively exact. Indeed, they yield the same renormalized
effective potential and the same relation m_h^2 = 8 pi^2 v^2 between the
particle mass and the physical vacuum expectation value. This relation predicts
a Higgs mass m_h about 2 TeV in the standard model. The non-interacting nature
of the scalar sector implies, by the equivalence theorem, that Higgs and gauge
bosons interact only weakly, through their gauge and Yukawa couplings.
