#2549 - Jared Diamond

What It Covers

Joe Rogan speaks with Pulitzer Prize-winning author Jared Diamond across 154 minutes, covering Diamond's new book on world leaders, the role of circumstance versus individual genius in historical outcomes, the origins and spread of major religions, the development of writing systems across civilizations, language diversity in New Guinea, and cannibalism practices among the Fore people of Papua New Guinea.

Key Questions Answered

• •Leader Emergence Formula: Four to five conditions determine whether a leader changes history: right time and place, personal capability, recognition of the moment, and organizational follow-through. Genghis Khan's rise correlates directly with tree-ring data showing the wettest decade on the Mongolian Steppe in 2,000 years occurring at his birth — without that rainfall producing surplus horses and food, his empire-building would have been impossible regardless of his strategic brilliance.
• •Religion Spreads Through Organization, Not Theology: Christianity grew from dozens of followers to the dominant Roman Empire religion not because of theological claims but because Christians outlived pagans statistically. Early Christians opposed abortion, elevated women's status, and cared for the sick — resulting in longer lifespans visible in tombstone data. When Constantine needed literate bureaucrats, Christians were disproportionately literate due to Judaism's writing tradition, giving them structural institutional advantages.
• •The Paul Problem in Religious Founding: Muhammad's teachings weren't written down for two centuries after his death; the Gospel of Mark, considered the earliest gospel, was composed roughly twenty years after Jesus died with no first-person accounts of Jesus existing. This means Islam's foundational record is even less verifiable than Christianity's. Religions requiring absolute doctrinal certainty are built on oral traditions filtered through decades before any written documentation occurred.
• •Writing Systems Collapse and Restart Independently: Greece lost its Linear B syllabic writing system entirely during the broader Bronze Age collapse around 1200 BCE — a civilization-wide literacy erasure lasting several centuries. When writing returned around 800 BCE, Greeks adopted a completely different Phoenician-derived alphabetic system and added vowels, since Greek requires vowel specification for comprehension unlike Afroasiatic languages. The Harappan civilization of the Indus Valley similarly lost writing for roughly 2,000 years before a new system emerged.
• •Pidgin Languages Become Full Languages Within One Decade: When German colonial administrators brought together New Guineans from different language groups, a stripped-down pidgin emerged for plantation communication. Within a single decade, the children of pidgin-speaking parents — needing to express the full range of human experience — spontaneously invented prepositions, future tense, and plurals without instruction. Hawaiian plantation newspaper records from 1890 to 1900 document this grammatical complexity emerging year by year in real time.
• •Writing System Design Matters for Reading Speed: King Sejong of Korea invented Hangul around 1430 CE as a deliberate top-down design decision, replacing a Chinese-derived system incompatible with Korean phonology. Hangul groups individual letters into syllable blocks, enabling readers to process language by syllable rather than letter. This design choice means Koreans read faster than speakers of other writing systems — a measurable cognitive advantage engineered by a single leader's intentional linguistic intervention six centuries ago.
• •Handwriting Produces Denser Prose Than Typing: Diamond writes all book drafts by hand using a 0.7mm pencil, then dictates cleaned drafts into his iPhone for transcription. He observes that typed prose becomes wordier because typing speed outpaces deliberate word selection, while the slower physical act of handwriting forces real-time sentence architecture decisions. Songwriters and authors who draft longhand report similar effects — the friction of writing by hand functions as an editing mechanism built into the composition process itself.