

55. Jared Diamond on the Downfall of Civilizations — and His Optimism for Ours
Dec 11, 2021
Jared Diamond, an award-winning author known for his works like "Guns, Germs, and Steel," shares his fascinating journey from studying gallbladders to exploring civilizations. He discusses the downfall of the Norse Greenlanders, who couldn't adapt their diet, and the broader implications for today's society. Diamond also reflects on the paradox of environmental destruction, tales of adventure in New Guinea, and the joys of later life. His insights inspire optimism about humanity's future despite historical challenges.
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Gallbladder Studies
- Jared Diamond's research initially focused on gallbladders, a simple organ, for his PhD due to his technical ineptitude.
- He later transitioned to geography and evolutionary biology, driven by renewed interests in history and geography from his childhood.
Tree Rings and Genghis Khan
- Paleoclimatologists used tree rings to understand Genghis Khan's rise.
- By analyzing tree ring width, reflecting rainfall and temperature, they discovered Khan's birth coincided with the wettest decades in 2,000 years, boosting horse and livestock populations crucial for his military expansion.
Pack Rat Nests
- Pack rat nests serve as environmental time capsules, preserving plant matter.
- Studying these nests reveals past vegetation and environmental conditions, such as the drought coinciding with the Anasazi's decline.