PERSON
Thomas Kuhn
The philosopher and historian who showed that science advances not by slow accumulation but by sudden, total replacements of framework—and whose concept of the paradigm shift has become the unavoidable vocabulary for every practitioner trying to understand what AI is doing to their field.
In 1962, a thirty-nine-year-old historian of science published a book that changed how educated people think about knowledge.
The Structure of Scientific Revolutions introduced the word “paradigm” into the general intellectual vocabulary—and it did so by demonstrating, against all received opinion, that science does not progress by the orderly accumulation of facts. It progresses by
paradigm shifts: sudden, total replacements of one conceptual framework by another, during which the problems, methods, and standards of an entire field are reorganized in a way that cannot be translated back into the old vocabulary. Thomas Kuhn's most uncomfortable claim was that the practitioners displaced at each shift are not simply wrong—they are operating inside a framework whose collapse they cannot perceive from within it. The
[YOU] on AI moment is the largest natural experiment in paradigm-shift phenomenology ever conducted, and Kuhn supplies its most precise theoretical instrument: a taxonomy of what it