Hello i am new to forum, and relatively new to Quantum physics study. I know that Quantum Physics cannot explain all the physical or universal phenomena, BUT: Provided that gravitational fields are weak, and we have to do with phenomena at low energies , so that the distortion of space and time (as desicribed by GR ) is negligible, is Quantum Physics the theory of everything? Can quantum physics explain all those phenomena falling into the former category (low gravity-low energy, with flat spacetime)? Are there any phenomena associated with low energies and low gravity that quantum physics cannot give an explanation? P.S I am not talkin about unification of the fundamental forces, as there are fermion and bosons which arent the same thing, there might as well be nuclear force and electromagnetic force and electroweak force which need not to be the same.