  The real meaning of `triviality' of (lambda Phi^4)_4 theory is outlined.
Assuming `triviality' leads to an effective potential that is just the
classical potential plus the zero-point energy of the free-field fluctuations.
This V_{eff} gives spontaneous symmetry breaking. Its proper renormalization
has the consequence that all scattering amplitudes vanish, self-consistently
validating the original assumption. Nevertheless, the theory is physically
distinguishable from a free field theory; it has a symmetry-restoring phase
transition at a finite critical temperature.
