Nonlocal effects in quantum gravity

Basem and I have a paper exploring the nonlocal effects that come from loops of light fields in gravity. I think that this is an important new area. Already, it seems to have major effects, such as the avoidance of singularities in general relativity, providing a quantum exception to the classical Hawking-Penrose theorems. There seems to be much to do in this area of nonlocal properties of field theory.