You Are Not So Smart You Are Not So Smart

345 - A Pox on Fools - Thomas Levenson

Aug 3, 2026 · 1h 6m

Summary

Host David McRaney interviews science writer Thomas Levenson about his book "A Pox on Fools," which explores the history and psychology of vaccine hesitancy. They analyze a tense 2026 interview between HHS Secretary RFK Jr. and Dana Bash, highlighting the resurgence of anti-vaccine rhetoric in government. Levenson identifies three core drivers of hesitancy: the belief that vaccines are unnatural, fear of side effects, and reactance to perceived threats to personal agency.

Topics discussed

Intro: Myopia in kids and sponsor ad HHS Secretary Dana Bash interview on vaccine hesitancy Context: Anti-vax sentiment at the center of power Guest intro: Thomas Levenson and his background Book overview: History of vaccine hesitancy Polio history: The 'Baba Yaga' of infectious diseases 1952 Polio outbreak and the Cutter incident Risk perception and motivated reasoning Sponsors: Essilor and School of Thought Understanding the deep history of anti-vax arguments Three major factors leading to vaccine hesitancy Factor 1: Vaccines seem wrong or unnatural Historical context: Variolation and theological objections The 'natural immunity' argument and its flaws Factor 2: Fear of side effects and historical risks Factor 3: Autonomy and herd immunity obligations Legal precedent: Jacobson v. Massachusetts (1905) Modern drivers: Influencers and the autism fraud Political movements and the erosion of trust in experts Outro, show notes, and final sponsor message
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