  In quantum field theory there is now a well developed technique, effective
field theory, which allows one to obtain low energy quantum predictions in
``non-renormalizable'' theories, using only the degrees of freedom and
interactions appropriate for those energies. Whether or not general relativity
is truly fundamental, at low energies it is automatically described as a
quantum effective field theory and this allows a consistent framework for
quantum gravity at ordinary energies. I briefly describe the nature and limits
of the technique.
