A true paradigm shift takes at least 20 years
a true paradigm shift tends to take at least twenty years to become the new normal, even after the evidence has become overwhelming. Why twenty years? That’s the amount of time, Kuhn concluded, for the existing generation of practicing scientists to retire or die off.
The current generation, in other words, never make the shift to the new paradigm; it’s only when the next generation takes over the field that the old paradigm—encoded in textbooks, maps, experiments and training materials–can be discarded.
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Oct 17, 2011
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