What if electron´s mass is negative ? Normally we measure “inertial” electron mass, not absolute.
Could this be why electrons reside in a “cloud” of uncertainty and cannot be poinpointed until stopped?
Maybe in a free state they repel gravitationally from protons and rise “up” andl to be captured electrostatically by coulomb forces when gravity repulsion equals electrostatic attraction.
Maybe the world is simpler than originally thought and the quark theory is just a theory of “unnatural” particles that are created under synchrotron conditions.