Thomas Kuhn, a twentieth-century physicist and philosopher of science, coined the phrase “paradigm shift†and extrapolated upon it in his book, The Structure of Scientific Revolutions.
A paradigm shift is a major change in how people think and get things done that upends and replaces a prior paradigm. A paradigm shift can result after the accumulation of anomalies or evidence that challenges the status quo, or due to some revolutionary innovation or discovery.