Episode Details

In 1907, Francis Galton rigged an experiment to prove crowds were stupid by having 787 people guess an ox's weight. The crowd was nearly perfect. But if crowds can be that smart, why do stock bubbles crash and tulip mania happen? The answer is a toggle—there are exactly four conditions that flip between collective genius and madness, and you can't tell which state you're in just by looking. 00:00:00 - Galton's Ox Experiment: The Crowd's Surprising Accuracy 00:03:05 - Fermentation and the Four Conditions 00:07:55 - The Khala Breaks: Losing Independence 00:13:14 - Tulip Mania and Immortal Ideas 00:15:14 - Wisdom Finds the Opportunity, Madness Drives the Bus 00:16:47 - The Unsettling Truth: The Jar Looks the Same Either Way --- Sources & further reading: • James Surowiecki — The Wisdom of Crowds (2004) — (book) • Jan Lorenz, Heiko Rauhut, Frank Schweitzer, Dirk Helbing — "How social influence can undermine the wisdom of crowd effect": https://www.pnas.org/doi/10.1073/pnas.1008636108 • Scott E. Page — The Difference: How the Power of Diversity Creates Better Groups, Firms, Schools, and Societies — (book) • Francis Galton — "Vox Populi" (Nature, 1907) — (historical journal article) • Kenneth F. Wallis — "Revisiting Francis Galton's Forecasting Competition" (Statistical Science, 2014): https://arxiv.org/pdf/1410.3989 • Marquis de Condorcet — Essai sur l'Application de l'Analyse aux Probabilités des Décisions (1785) — (historical text) • Charles Mackay — Extraordinary Popular Delusions and the Madness of Crowds (1841) — (book) • Gustave Le Bon — The Crowd: A Study of the Popular Mind (1895) — (book) • Anne Goldgar — Tulipmania: Money, Honor, and Knowledge in the Dutch Golden Age (2007) — (book) • Peter Garber — "Tulipmania" (Journal of Political Economy, 1989): https://ms.mcmaster.ca/~grasselli/Garber89.pdf • George Calhoun — "The Un-Wisdom Of Crowds: Prediction Markets Failed Their Midterm Exams" (Forbes, 2022): https://www.forbes.com/sites/georgecalhoun/2022/11/14/the-un-wisdom-of-crowds-prediction-markets-failed-their-midterm-exams/ • CoinDesk — "Only 3% of Traders Drive Polymarket's Accuracy, Not the Crowd, Study Finds" (April 2026): https://www.coindesk.com/markets/2026/04/26/only-3-of-traders-drive-prediction-markets-accuracy-not-the-crowd-study-finds • Nicky Case — "The Wisdom and/or Madness of Crowds" (interactive explorable): https://ncase.me/crowds/ • Seeme, Green, and Kopp — "Ignorance of the crowd: dysfunctional thinking in social networks" (Frontiers in Communication, 2025): https://www.frontiersin.org/journals/communication/articles/10.3389/fcomm.2025.1547489/full • Joshua Becker, Devon Brackbill, Damon Centola — "Network dynamics of social influence in the wisdom of crowds" (PNAS, 2017): https://www.pnas.org/doi/10.1073/pnas.1615978114 • CNBC — "GameStop mania explained" (January 2021): https://www.cnbc.com/2021/01/27/gamestop-mania-explained-how-the-reddit-retail-trading-crowd-ran-over-wall-street-pros.html • Kristina Lerman et al. — "The Majority Illusion in Social Networks" (USC, 2016) • Stephen Reicher — Social Identity Model of Deindividuation Effects (SIDE) — (multiple publications) This podcast episode was fully generated by AI — research, script, voices, and production. Built with Claude, Piper TTS, and automated pipeline tooling.