paradigm shift

noun2

1. •
   A radical change in thinking from an accepted point of view to a new one, necessitated when new scientific discoveries produce anomalies in the current paradigm.

   • Recently, there has been a radical paradigm shift taking hold in forums that attend to the education of DHH students. — 2002
2. •
   Any radical change, especially in politics or technology.

   • So the fact that people are calling me, a woman of a certain age and demographic, to sit down on studio films — which have not been my bread and butter — there’s definitely a paradigm shift. — 2019