so imagine a hyper-classical scenario. A single point elecrron is orbiting a point nucleus. No other charged objects are nearby. There is no em radiation from the electron. The electron orbits the nucleus in perfect circular motion. Zero orbital precession, zero uncertainty in the electron's momentum and position. Now if i suddenly disturbed the electron by giving it a push toward the nucleus, what would happen? Certainly its orbit will be disturbed. But could the electron fly out of orbit? Would it go into a new stable orbit, like an elliptical or parabolic orbit?