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The Structure of Scientific Revolutions — Companion

Thomas Kuhn's 1962 essay — the most cited academic book of the twentieth century — replaced the textbook image of science as steady accumulation with a cycle: normal science → anomaly → crisis → revolution → new normal science. It gave the world "paradigm shift" and forced every field since to ask which stage of the cycle it's in.

Each chapter page includes an audio overview, a start infographic (read before), and a transformation infographic (read after).


The 14 Chapters

# Chapter Core Move
1 A Role for History History demolishes the textbook image of science
2 The Route to Normal Science Fields mature by acquiring a paradigm
3 The Nature of Normal Science Mature science is paradigm mop-up — and that's its power
4 Normal Science as Puzzle-Solving Theories test scientists, not vice versa
5 The Priority of Paradigms Shared examples run deeper than shared rules
6 Anomaly and Discovery Discovery is a process that starts with violated expectations
7 Crisis and New Theories New theories are born from visible paradigm failure
8 The Response to Crisis No paradigm is abandoned without a replacement
9 Nature and Necessity of Revolutions Paradigm choice is political: incommensurable camps
10 Revolutions as World-View Changes After a revolution, scientists see a different world
11 The Invisibility of Revolutions Textbooks erase the revolutions that made them
12 The Resolution of Revolutions Conversion and generational turnover, not proof
13 Progress through Revolutions Science progresses from, not toward
14 Postscript — 1969 Disciplinary matrix, exemplars, values: the repaired theory

The Kuhn Cycle

Normal science (chapters 2–5) → anomaly (6) → crisis (7–8) → revolution (9–10) → erasure and progress (11–13).

Master Themes

  • Exemplars over rules — communities cohere on shared examples, not stated criteria
  • Precision manufactures surprise — only sharp expectations make anomalies visible
  • No rejection without replacement — choice is always between paradigms
  • Trained perception — expertise restructures what practitioners literally see
  • Progress without a destination — puzzle-solving power grows; truth-approach is optional

Study Guides

Condensed study guides for each chapter — key terms, checklists, self-tests.


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