Nature Podcast Viral spread: how rumours surged in revolutionary France
Aug 27, 2025
Stefano Zapperi, a theoretical physicist, explores the intriguing spread of rumors during the French Revolution, revealing how socio-economic factors fueled the 'Great Fear.' He applies modern epidemiological models to illustrate the viral nature of social unrest and its rational underpinnings. Lizzie Gibney, a Nature reporter, discusses public perceptions of quantum mechanics through a quiz, revealing widespread preferences for realist interpretations despite their complexities. Together, they bridge historical events and scientific dialogues, shedding light on the power of information.
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Rumours Spread Like An Epidemic
- Stefano Zapperi models the Great Fear as an epidemic of rumours spreading across towns using 18th-century road maps.
- He maps three waves moving at walking/horse speeds and traces routes through the digitized Cassini map.
Political Motive Overirrational Panic
- Zapperi's analysis supports Lefebvre's view that the Great Fear was politically rational, not mere mass hysteria.
- The pattern implies rumours served revolutionary aims rather than being purely emotional epidemics.
Digitized Data Reconstructs Events
- Combining historical records with digitized maps allowed temporal and spatial reconstruction of rumor spread.
- This enabled measuring propagation speed and identifying origin waves converging in southern France.
