come full circle

come full circle  {v. phr.},  {informal}
1. To become totally opposed to one's own earlier conviction on a given subject.
Today's conservative businessperson has come full circle from former radical student days.
2. To change and develop, only to end up where one started.
From modern permissiveness, ideas about child raising have come full circle to the views of our grandparents.
Categories: children informal verb