Exercises: The Authority Cascade

Difficulty Guide: - ⭐ Foundational (5–10 min each) - ⭐⭐ Intermediate (10–20 min each) - ⭐⭐⭐ Challenging (20–40 min each) - ⭐⭐⭐⭐ Advanced/Research (40+ min each)

Part A: Conceptual Understanding ⭐

A.1. Define the three components of an authority cascade (prestige investment, deference amplification, cascade lock-in). For each, explain why it is individually rational but collectively harmful.

A.2. Explain the difference between healthy deference to expertise and a pathological authority cascade. Use the diagnostic table from section 2.8 to identify at least three distinguishing features.

A.3. A colleague claims: "The Semmelweis case just shows that 19th-century medicine was primitive. Modern science has peer review and replication — authority cascades can't happen anymore." Identify at least two errors in this reasoning.

A.4. Explain the concept of "citation amplification." How does a claim that has been cited 500 times differ from a claim that has been independently verified 500 times?

A.5. The chapter distinguishes between "justified trust" and "unjustified deference." In your own words, explain this distinction and give one example of each.

A.6. Why is the Einstein cosmological constant case important for understanding authority cascades? How does it show that cascades can work "in reverse"?

Part B: Applied Analysis ⭐⭐

B.1. Choose one of the five historical cases in this chapter (Semmelweis, Marshall & Warren, Wegener, refrigerator mother, Einstein's constant). Identify all three cascade components and trace how they interacted.

B.2. For a claim that is widely accepted in your field, trace the citation network. Does it lead to multiple independent roots (healthy consensus) or to a single authoritative source (possible cascade)? Document your findings.

B.3. The chapter presents a cost-benefit table for a young Viennese physician deciding whether to accept Semmelweis's findings. Create a similar table for a modern scenario in your field where a junior professional must decide whether to accept or reject a claim from a senior authority.

B.4. The dietary fat hypothesis was maintained for decades partly because of food industry economic interests. Identify another case (from any field) where economic interests reinforced an authority cascade. Map the specific incentive structures.

B.5. Compare the correction timelines of two cases from this chapter. Why was one faster than the other? What structural factors explain the difference?

B.6. The "Semmelweis reflex" describes the automatic rejection of evidence that contradicts established norms. Describe a situation where you've witnessed (or experienced) this reflex. Was the reflex justified or unjustified?

Part C: Research Design Challenges ⭐⭐–⭐⭐⭐

C.1. Design a method for detecting authority cascades in a field you don't have expertise in. What data would you need? What patterns would you look for? What would a "cascade score" look like?

C.2. The "three independent sources" test asks whether a claim has been verified by three independent research groups. Apply this test to a specific claim in your field. Document the result. If the claim fails the test, does that mean it's wrong? Why or why not?

C.3. Propose an institutional reform for a research institution (university, lab, journal) that would reduce vulnerability to authority cascades without undermining legitimate quality control. Be specific about mechanisms.

Part D: Synthesis & Critical Thinking ⭐⭐⭐

D.1. The chapter argues that authority cascades operate identically across medicine, geology, psychiatry, astrophysics, and nutrition. A critic might argue that these fields are too different for meaningful comparison — that medicine's evidence standards differ from geology's, and what looks like a "pattern" is actually selection bias. Evaluate this critique.

D.2. Is the concept of "authority cascade" itself subject to an authority cascade? (That is: are readers of this book deferring to the author's authority rather than independently evaluating the evidence?) What would it take to answer this question?

D.3. The chapter notes that "challenging a prestigious wrong answer" and "being a contrarian crank" are difficult to distinguish in real time. Develop criteria for telling the difference. Test your criteria against at least two historical cases.

D.4. Compare the authority cascade to a related concept from another field (e.g., information cascades in economics, groupthink in organizational psychology, the bandwagon effect in social psychology). What does the comparison illuminate?

Part M: Mixed Practice (Interleaved) ⭐⭐–⭐⭐⭐

M.1. (From Chapter 1) Map the Marshall & Warren case to the seven-stage lifecycle of a wrong idea. At which stage did each cascade component play the strongest role?

M.2. (From Chapter 1) The chapter on the archaeology of error argued that failure modes are "structural, not individual." How does the authority cascade mechanism support or complicate this claim? Can you identify both structural and individual factors in the Semmelweis case?

M.3. (Integration) Consider your Epistemic Audit target from Chapter 1. Based on Chapter 2, does your field show signs of authority cascade? Which component is strongest?

Part E: Research & Extension ⭐⭐⭐⭐

E.1. Citation Network Analysis. Choose a specific, well-cited claim in your field. Using Google Scholar or a similar tool, trace the citation chain backward from recent papers to the original source(s). Create a visual map (or describe one) showing the network structure. Is it wide (multiple independent roots) or narrow (single root)?

E.2. Comparative Case Study. Select a case not discussed in this chapter where an authority cascade appears to have operated. Document the three components, the timeline of the cascade, and the correction (if any). Write a 1,500–2,000 word analysis.

Solutions

Selected solutions in appendices/answers-to-selected.md.