I'd like to see this extended slightly to give a half-life based on the masses or similar. Another interesting 3-body problem is the quarks in a proton or neut

I'd like to see this extended slightly to give a half-life based on the masses or similar. Another interesting 3-body problem is the quarks in a proton or neutron. These can be critically stable with the resulting magnetic field adding more stability. But physics as a field has truly abandoned all mechanical models in favor or purely statistical ones.