Deterrents to a Theory of Quantum Gravity
  As shown previously, quantum mechanics directly violates the weak equivalence principle in general and in all dimensions, and thus indirectly violates the strong equivalence principle in all dimensions. The present paper shows that quantum mechanics also directly violates the strong equivalence principle unless it is arbitrarily abetted in hindsight. Vital domains are shown to exist in which quantum gravity would be nonapplicable. There are classical subtleties in which the strong equivalence principle appears to be violated, but is not. Neutron free fall interference experiments in a gravitational field reveal some evidence for a violation of the equivalence principle. Galileo's falling body assertion and the misconception it leads to, are examined, 
Mario Rabinowitz