There is a phenomenon with Physicists in their emeritus years. They go into other fields, declare that the field is just so easy, try to model things as 1m rad

There is a phenomenon with Physicists in their emeritus years. They go into other fields, declare that the field is just so easy, try to model things as 1m radius spheres of water, see that the four interstitial cell layers of the bovine second stomach are hyper-complex and noisy when saline levels change 2% (or things to that effect), declare that the field still needs to change, write a paper up that is simplistic and help no one in the field, get a bit of press coverage, assuage their damaged egos, and then try out landscape painting or Ethiopian cooking. This phenomenon of overconfident and un-humble emeritus Physicists is not restricted to just them, I'm afraid, but all people. Humility is a virtue.