> But gravity is caused by the discrete particles (those with mass), so is it really continuous then? Of course the field can be continuous, even if the weight

> But gravity is caused by the discrete particles (those with mass), so is it really continuous then? Of course the field can be continuous, even if the weight is exactly some rational number. "Discrete steps" just means that the value differences in gravitational waves is also discrete. A bigger problem, where relativity clashes with QM, is stuff like singularity and superposition. We don't have an answer for that yet.