Glossary
The disease pressure Jiang treats as the most important factor reducing Europe's population and making conquest possible.
Topic brief
A Jiang Lens evidence brief for this topic, built from source tags, transcript matches, and linked source refs.
plague
The disease pressure Jiang treats as the most important factor reducing Europe's population and making conquest possible.
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Key Notes
model
Old agricultural Europe collapses because static agriculture, disease, and climate change reduce population and create an opening for Yamnaya invasion.
diagnosis
Jiang says the Byzantine and Sassanian empires looked strong but were weakened by war, plagues, civil wars, and social discontent, while the Arabs were stronger than they appeared but divided.
diagnosis
Jiang says Pericles' wall strategy caused overcrowding, plague, loss of farmland, and a death toll far worse than a battlefield defeat might have been.
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model
Jiang argues that plague reduced Europe's population because farm life placed people near pigs, rats, garbage, and dense settled communities, while mobile steppe people were less exposed.
diagnosis
He names plague, climate change, and Yamnaya colonization as the three things that destroyed old Europe, with plague as the most important.
model
Farmers were more vulnerable to plague because they lived densely with animals, pigs, and rats, while steppe people lived farther apart, were more hygienic in Jiang's account, and were physically stronger from milk and exercise.
Timestamped Evidence
Transcript
"Again, women are just better politicians than men because women are more willing to cooperate. Women have more emotional intelligence. And women can use..."
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"...right. It collapsed everywhere in Europe. Why did this happen? The plague, guys. Okay? There's a problem with being a farmer. You are always..."
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"Okay? So there's this huge drop in the population because of Black Death in Europe. Okay? That's number one. Number two is climate change...."
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"These are problems that have existed throughout human history. Why are there so many revolutions in Chinese history? Because of these two problems, right?..."
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"...is, whenever you have large cities, you have the problem of plagues, right? Disease. Plagues. So there are these plagues called the Justinian Plague..."
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"...Disease. So because of the overpopulation in Athens they had the plague which killed one third of the Athenian population. Okay? Do you understand?..."
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"...who live on farms? What's their ultimate problem? Thank you, the plague, okay? Do you understand? Because you're living next to pigs and rats,..."
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"Now the thing is, though, the plague spread around the world. Okay? Because remember, what's important to remember is, these people in the steppes,..."
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"...Three things, okay? That destroyed Europe. The first thing is the plague. That's actually the most important thing because it wiped out most of..."
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"Was actually the plague, right? Europeans had these diseases they brought over and that killed most of the local population, okay? So the plague..."
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"Okay, let's talk about the plague, okay? The plague, yes. It killed most Europeans, yes. Because Europeans were living on farms, right? So they..."
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"...sense? So these people are less likely to die from the plague. All right. Any more questions? Exactly, yes. Okay. So basically, everyone in..."
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Relevant Lectures And Readings
Reading
A source-grounded reading of Jiang’s lecture on why the so-called barbarians repeatedly defeat civilization: empires turn innovation into bureaucracy, while the steppe turns geography, animals, inheritance, oath, myth, and violence into mobile social power.
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A source-grounded reading of Islam's rise as Jiang's first global revolution: a thin archive, a Moses-like prophet, a desert mistaken for backwardness, and a movement that fused religious devotion with revolt against debt, landlessness,...
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Greek history begins with geography, but it ends here as a theory of abundance, blocked status, and pointless war: when the line stops moving, the young do not overthrow the old order directly.
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Old Europe begins as a Mother Goddess world of agriculture, unity, women, peace, and art.
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Related Topics
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