> Quantum Mechanics and General Relativity do not agree More precisely, they are incompatible if you treat them as fundamental theories of everything. But neit

> Quantum Mechanics and General Relativity do not agree More precisely, they are incompatible if you treat them as fundamental theories of everything. But neither QM nor GR claims to be any such thing. That is a key difference between our current theories and schemes like Aristotelian physics, or for that matter Newtonian physics. Both Newton and Aristotle thought their theories were theories of everything. We know that neither the QM we currently have nor the GR we currently have are theories of everything; they are just models valid within particular domains. Those domains are very wide, but (a) neither one covers everything, and (b) there is virtually no overlap between them, and where there is (for example, quantum field theory in curved spacetime) we have ways of meshing them that work well enough.