Einstein's General Realitivity acurately computed the precession of the perihelion of the Mercury, Schwinger's and Feynman's QED was able to calculate the Lamp shift, Bohr's quantum mechanics gave precise explanations of the hydrogen atom. Question: what experimental phenomenon is there that we can not acurately enough compute, but where we expect that quantum gravity calculations would give an exact or more precise solution? Is there any? The black hole information loss problem? What is dark energy? What happened at the Big Bang? What is the Lamp shift for quantum gravity?!