This seems really interesting. Could you explain more about the strong force and this "kinetic mass" effect? I thought quarks had mass, and that's where my mass comes from?
Edit: More explanation: If you take the quark masses as unbound rest mass, it's not clear why the proton is bound -- it would have higher energy (=mass) than the unbound constituents. This is different from atoms, as a hydrogen atom has slightly less mass than the sum of a free proton and free electron (13.6eV in the ground state).
https://profmattstrassler.com/articles-and-posts/particle-ph...