  We consider a model for the electroweak interactions based on the assumption
that physical particles are singlets under the gauge group SU(2). The concept
of complementarity explains why the standard model works with such an
extraordinary precision although the fermions and bosons of the model can be
viewed as composite objects of some more fundamental fermions and bosons. We
study the incorporation of QED in the model. Furthermore we consider possible
deviations from the standard model at very high energies, e.g. excited states
of the weak bosons.
