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From the Vault: The Devil You Know, Part 1

Sep 24, 2026 · 52m

Summary

Hosts Robert Lamb and Joe McCormick explore ambiguity aversion, the psychological preference for known risks over unknown ones, using Daniel Ellsberg’s 1961 "three-color urn" thought experiment to illustrate the Ellsberg Paradox. They discuss how this cognitive bias undermines standard economic models of rational decision-making and examine its real-world applications, particularly in the context of nuclear strategy. The episode also analyzes "Madman Theory," a political tactic that exploits an opponent’s fear of unpredictability to gain leverage, while critiquing its long-term instability …

Topics discussed

Sponsor: YouTube Premium Sponsor: Health vs Hype Sponsors: ChatGPT Work and Amtrak Introduction: Devil You Know Part 1 Defining Ambiguity Aversion Cultural Proverbs on Known vs Unknown Risks Ambiguity vs Chaos and Personal Anecdotes Academic Sources on Ambiguity Aversion Daniel Ellsberg and the Pentagon Papers Ellsberg's Activism and Nuclear Weapons Sponsors: ChatGPT and YouTube Premium Sponsors: Health vs Hype and SimplySafe The Ellsberg Paradox: Urn Experiment Critique of Expected Utility Theory Frank Knight's Risk vs Uncertainty Empirical Evidence and Robustness of Aversion Sponsors: ChatGPT and YouTube Premium Sponsors: Health vs Hype and SimplySafe Nixon's Madman Theory and Nuclear Deterrence Exploiting Ambiguity in Negotiations Criticisms and Costs of Madman Strategy Domestic Costs and Long-term Stability Rationality vs Bias in Decision Making Outro and Sponsors: Pilot Pen Listener Story: Betrayed by Bill
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