A “paradigm shift” is a significant change in the paradigm of any discipline or group. This shift is dramatic alters the landscape that was previously thought to be the standard. It’s that “aha!” moment when one or an entire society sees things in such a new light that the old ways of thinking are set aside and a new model is adopted. Each paradigm shift causes people to discard a previous standard in favor of this new model.
For example, scientists used to believe that the world was flat. This belief was based on the fact that they could only see for a limited distance. Once they began to explore further and further out they concluded that the world is not flat after all, that it is actually round. This discovery had profound ramifications on the scientific community and everyone else.