They both have a domain of applicability in which they have passed every test to this point in time. Its obvious to folks intersted in theoretical models that both have a limit. Dick claims to have bridged the gap. In essence when he says this he is claiming to have a theoretical model of quantum gravity. He can't even derive a solution of Einstein's equations from his theory [thats what the extra term is, a failure to derive a solution]. At the same time he claims everybody else is to stupid to understand what he has done.