  A discussion is presented of the principle of black hole com- plementarity.
It is argued that this principle could be viewed as a breakdown of general
relativity, or alternatively, as the introduction of a time variable with
multiple `sheets' or `branches'
  A consequence of the theory is that the stress-energy tensor as viewed by an
outside observer is not simply the Lorentz-transform of the tensor viewed by an
ingoing observer. This can serve as a justification of a new model for the
black hole atmosphere, recently re-introduced. It is discussed how such a model
may lead to a dynamical description of the black hole quantum states.
