Why Leonardo was a saboteur, Gutenberg went broke, and Florence was weird – Ada Palmer

Summary

• Distribution, not invention, is the bottleneck: Gutenberg produced 300 Bibles for the cost of one, sold seven in his landlocked German town, and went bankrupt — as did the bank that seized his press and the apprentices who followed him. “Congratulations, Mr. Gutenberg, you have 293 Bibles, and you can’t sell them.” Print only became profitable ~40 years later, once Venice’s hub shipping and the Frankfurt Book Fair built the missing distribution layer — Palmer’s analogy is that e-books “existed” in the 1970s but only became an industry when the Kindle created the market.
• Palmer’s frame for AI-era investors: the computer→internet→smartphone→LLM sequence is one information revolution with successive applications, not ten separate ones — exactly like print, which hit Europe with a new “bang” every decade or two for 150 years (pamphlets → Reformation → newspapers → magazines). The Reformation was “enabled by pamphlets in exactly the same way the Arab Spring is enabled by cell phones”: Luther’s theses reached London in 17 days, a speed impossible a decade earlier.
• Nobody steers a revolution to their values — a direct caution for AI-alignment plans. Petrarch’s project to make virtuous rulers by rebuilding classical libraries produced instead the Borgia wars, Machiavelli’s political science, and eventually germ theory and vaccines: “He did not create a world that went as he wanted, but he created a world that went well.” The tradeable distinction is “go my way” vs. “go well.”
• Culture is soft-power leverage: the Medici — “extra scummy merchant scum” with no nobility and no marriage alliances — flipped condescending noble ambassadors into supplicants using bronzes, domes, Greek tutors, and a ten-year-old Lorenzo reciting Greek poetry, at which point Cosimo asks, “Would you like to make an alliance with Florence?” Cosimo’s operating thesis, verbatim: “It is dangerous to be rich and not powerful.”
• Incumbents skip disruptive tech: Italy never industrialized because it was already on top as the center of “Big Finance, Big Wool, and Big Oil” (olive oil) — Palmer says recently examined documents “pretty much confirm” Italians figured out industrial looms in the 1400s and chose not to use them. Her general law: “You have the Industrial Revolution when you feel you need to” — Gutenberg himself was a response to a 1410s library-building demand boom, not a random genius.
• Censors are systematically wrong about what matters: the Inquisition ignored Machiavelli and Lucretius while hunting minor Protestant minutiae; Enlightenment inquisitors waved through Voltaire and the Encyclopédie to burn Jansenist tracts; Milton’s censors’ only demanded change to Paradise Lost was one line about astrology. Of hundreds of thousands of Inquisition trials, twelve concerned science and exactly one man (Bruno) was executed for it. “An era is always wrong about what ideas… are the really big ones.”
• Resistance compounds even when it loses: because Florentines fought so hard for their republic, the Medici dukes who finally won had to cosplay republicans in togas, build the Vasari Corridor to avoid assassination, and detour it around one family’s tower rather than violate property rights — versus Ferrara’s Duke d’Este strolling naked with a sword because he feared no one. Dwarkesh’s read on US Putinism odds: low, because “even when resistance loses, resistance wins” — the danger is only “when people feel as if partial victory is failure.”

Deep dive

1. Republics grew where agriculture was strong

• Palmer’s answer to Dwarkesh’s opening puzzle (why so many republics clustered in Italy): when Rome dissolved in the West, every city had to self-govern, and only larger towns on good agricultural land could sustain themselves and set up senates on the Roman model. Weaker towns either fell to one wealthy family with goons or emptied out entirely.
• The mechanism behind villages, as told: a starving town’s residents ask the noble family in the fortified villa outside town, “if I move next to your villa and work for you, will you protect me with your bodyguards?” — so a village is a monarchal structure by origin, a migration into a lordling’s protection zone. Italy’s superior farmland meant more of its towns survived as self-governing republics.

2. Petrarch’s plan: raise Brutus, not Lord Montague

• Petrarch, having survived the Black Death (one of his two surviving friends was then killed by bandits en route to visit him), declares “this is an age of ash and shadow” and diagnoses the problem as leaders: Romeo and Juliet is Palmer’s teaching tool — Lord Montague demands Romeo “get away with murder because he is their son,” while one of Rome’s first consuls, Brutus executed his own sons for treason against the state.
• The plan follows from a theory of education as osmosis: recreate what young Cicero and Brutus read — Plato, Homer — build the libraries, hire tutors like Marsilio Ficino, and the princes raised on them will act like Brutus. Uptake is strong because Italy is full of illegitimate upstart rulers who can dress “like a Roman emperor” and seem “like the Caesars” rather than mere tyrants.
• The Medici’s version, in Palmer’s ventriloquy: “We are merchant scum… even on the standards of merchant scum, we’re extra scummy merchant scum. But if we can have Latin and Greek and quote Cicero… people will take us seriously” — idealism at origin, propaganda in adoption.

3. The ambassador set piece: how art flips a power dynamic

• Palmer’s extended vignette is the episode’s best specimen of culture-as-leverage. A French noble ambassador rides toward Florence — “a pit of scum and villainy,” the “sodomy capital of Europe” (in French law, merely having visited Florence was admissible evidence of sodomy) — and encounters impossible things: lifelike statues, the massive dome, a courtyard “cleaner and more outdoors than the outdoors,” Platonists speaking a Greek he believed lost, and ten-year-old Lorenzo reciting a Greek poem on the three parts of the soul.
• Then the close: “That’s the moment Cosimo de’ Medici turns to you and says, ‘Would you like to make an alliance with Florence?’” The ambassador can still sack the city — it has no nobility, no marriages, no allies — or he can ask for “a bronzesmith and an architect and a Greek teacher” so the Portuguese ambassador feels like the fool next time. “The power dynamic just flipped upside down.”

4. The plan fails — and Machiavelli invents the casebook method

• The first generation raised as philosopher-princes turns out to be Cesare and Lucrezia Borgia, “both of whom had Latin and Greek and Cicero and Plato when they were kids” — then Cesare “sets fire to half the world.” Machiavelli watches virtuous Guidobaldo da Montefeltro do everything right and lose everything, while “terrible people like Cesare Borgia and Julius II make terrible choices and succeed.”
• His pivot, as Palmer reconstructs it: “clearly Petrarch was wrong that just reading Cicero would make successful rulers… What if the libraries are what we need, but we need to use them differently?” — history as a casebook: five battles fought next to rivers, side by side, imitate what worked. Contemporaries call him a historian; the idea takes decades to catch on.
• Timescale discipline, worth keeping verbatim in spirit: Petrarch to Machiavelli spans as long as Napoleon’s childhood to Gagarin’s spaceflight — “we think of it as one time period, but a lot changed.” By 1600, Bacon and Galileo complete the arc: “let’s use nature as a casebook of examples the way Machiavelli said we should use history.”

5. Dwarkesh’s pushback: why this story of the Scientific Revolution?

• The host’s challenge — “there are so many stories” (citing Joseph Henrich’s kinship-networks thesis from a prior episode) — draws Palmer’s topsoil metaphor: “for forests to grow, you need enough topsoil” — enough books, plus networks moving information, before journals or discourse are possible. Her concession: Henrich’s guild story and hers “are all real, they’re all intermixing, and they’re all parallel.”
• Her most striking data point inverts the usual causality: Florence had a male literacy rate of 90% — as of the twelfth century, because merchants must read letters and account books. But being literate and being book-literate differ “the way some people watch television but don’t watch very many films” — you could be literate in a city containing almost no books.
• The scaling case study: when Poggio found Lucretius, “two dozen people in the world could read it”; a hundred years later — after footnotes, marginal glosses, and vernacular translations, the “micro technologies of book production” — 30,000 people read it across 30 print editions before 1600. New readers ask new questions: that’s the generation (1560s–80s) that discovers the heart is a pump and takes atoms and germ theory seriously.

6. “Go my way” vs. “go well” — the episode’s AI moral

• Dwarkesh names the salience directly: people today plan to “make AI go well by doing X thing,” yet “historically nobody has a good track record” of steering huge changes toward their values. Palmer sharpens it: “‘go my way’ as opposed to ‘go well’ is a really important distinction.”
• Petrarch assumed the recovered ancients would agree with Christianity — “it just needs a little shaker of the Trinity on top.” Instead: Hedonists, Epicureans, Stoics, giant wars, Machiavelli’s critique — and, downstream, germ theory, hygiene, vaccines, penicillin. A time-traveling Petrarch, an oligarchist “horrified by democracy,” would nonetheless “weep for joy” at a curable Black Death: “He did not create a world that went as he wanted, but he created a world that went well.”
• The generalizing example, as told: trains and bicycles → women can move freely, organize, mobilize → suffragettes. “Did the inventor of the train intend for there to be women’s liberation? No… Did it go well? Yes.”

7. Florence’s tyrant-proof machine: nine guys, a bag, and a tower

• Every other Italian republic copied Rome’s hereditary senatorial oligarchy; Florence, after a near-takeover, massacred its nobility — “cut their heads off, put them on pikes… raked salt into the earth, and had a party on their graves” — and built a commoner republic of merchant-guild owners (“the owners of the means of production who are themselves commoners”).
• The mechanics: names of fit guild members go in a bag; nine drawn at random rule for two or three months, locked in a tower so they can’t be bribed or kidnapped — and Dwarkesh confirms the kicker: decisions require not majority but consensus of nine random men. Lacking nobles, Florence must import a noble podestà as police chief, pay him, then banish him for life on pain of death so he can’t leverage his power.
• Palmer’s caution against reading it as democracy: Machiavelli’s popolo, translated as “the people,” meant the top 4% economically — “a narrow-slice oligarchy being heard” — a fact nineteenth-century translators of The Prince missed.
• Why merchants held status at all: the patronage system, where your employer is your safety net — supporting your orphans, your disability, your defense attorney (“the persuasive note to the judge”) — so a council of the CEOs everyone works for made intuitive sense.

8. Cosimo’s regulatory capture — and the bribe he mocked

• The papal banking contract meant every coin in every collection box in Christendom flowed through Cosimo before reaching the pope, minus his cut — money velocity plus networking. From there, capture of sortition is statistical: employ a third of the city, and “nine guys at random… three of them are going to be your guys” — a plurality with a plan controls a consensus body.
• The system’s revenge and his counter: in 1430–32 the lottery drew his enemies, who declared him a traitor and jailed him. He bribed his way out — ~$300,000 to the guard, ~$700,000 to the captain — later writing that they were “the two most foolish men he’d ever met” because he’d happily have paid tens of millions. The next election “happened to elect entirely people who just loved Cosimo”; his enemies proved guilty of tax evasion; and he moved from controlling pluralities to bribing the people who run the elections. His maxim: “It is dangerous to be rich and not powerful.”

9. Even when resistance loses, resistance wins

• Because Florentines were so invested in the republic, the Medici dukes had to keep its forms: office-holders still wore the lucco fiorentino — to period eyes a toga, “cosplaying the Roman Republic” — and Duke Cosimo I wore one to costume balls. Dwarkesh’s addition: doubly ironic, since Rome’s Senate kept meeting until 1200 AD after the Republic died.
• The Vasari Corridor as the thesis in architecture: a duke “so terrified of being assassinated by their own people” builds an overhead walkway across the city — “a sign of a weak duke” — and when the ancient Mannelli family refuses to let him knock the top off their tower, the corridor detours around it, because violating ancient property rights means rebellion. Contrast Ferrara: Duke Alfonso I d’Este “used to wander around Ferrara buck naked with a sword in one hand and his dick in the other,” his siblings kidnapping each other’s musicians and “recreationally murdering each other’s servants” — what you do “when you don’t fear your people.”
• The contemporary application both speakers land on: Dwarkesh rates the odds of America going Putinist “quite low” because republican expectation is strong; Palmer’s warning is precise — “the only thing that makes resistance weak in the US is when people feel as if partial victory is failure.” Even a worst-case tyranny would be “so much weaker because there was a lot of resistance.”

10. Machiavelli rots faithfully — The Prince as loyalty oath

• Machiavelli — never fully enfranchised (his grandfather’s tax debt barred office), tortured and exiled after his name appeared on an anti-Medici recruitment list — was told to “go sit in the country and rot, and if you’re good, we’ll invite you back.” Everyone expected him to break the deal: cardinals, the kings of England and Naples, the court of Milan all hired exiled Florentines. Instead “he passes the test and sits in the country faithfully and rots” — “a weird thing to do.”
• How do we know it wasn’t careerism? Palmer’s evidence standard: read the personal letters. He published his hit comedy and his history, but circulated The Prince only among intimate friends plus the copy sent to the family that exiled him — “he doesn’t want his manual of the great secrets of statecraft in the hands of anybody but his homeland.” Yes, “it’s a job application,” but the message is “I support my country more than any particular regime.”
• The crucial gloss on his ruthlessness: “the end justifies the means when the end is the survival of your country — it’s not that the end, in general, justifies the means.” Having seen streets run with blood, he holds that “even life under a tyrant is better than life in a civil war.”

11. Gutenberg went broke on distribution — and print is one long revolution

• The core economics: printed books are a mass-produced commodity in a world without mass distribution — almost nothing but coins was mass-produced. Gutenberg prints 300 Bibles, sells seven “to the seven people in your small landlocked German town who are legally allowed to read the Bible,” and goes bankrupt; the bank that seizes the press goes bankrupt; his apprentices go bankrupt and flee to Venice — “the airport hub of the Mediterranean” — where ten Bibles to each of thirty ships’ captains finally makes print sustainable, followed by book fairs (Frankfurt survives today) where a printer swaps a thousand copies of one book for five copies each of 200.
• Palmer’s framing for the present: computer, PC, internet, phone, social media, LLMs are “all deeper penetration of one tech revolution” — just as print took 40 years to be profitable (printers only make money in the 1490s), then delivered pamphlets in the 1510s (“we get the Reformation, which is enabled by pamphlets in exactly the same way that the Arab Spring is enabled by cell phones”), then newspapers, then magazines — “one ongoing information revolution” hitting Europe “with successive revolutions for 150 years.”
• The accountability stack, told through her own artifacts on the table: pamphlets (two days’ printing, sold thrice weekly, titles like “The Scandalous Tale of a Doctor from Padua… How He Was Justly Punished by God”) can be unreliable; the newspaper’s serial nature was a form of accountability; and The Gentleman’s Magazine — the first “magazine” — was invented to fact-check contradicting newspapers. “An intellectual response to the fake news problem.”
• Against the lone-genius theory: Gutenberg invented into a library-building boom starting in the 1410s — smaller books, surging paper use, spiking demand. “It isn’t by chance that we got the printing press in 1450… We were going to get the invention.” Dwarkesh’s parallel: oil struck in the 1860s was just kerosene until the car in the 1910s; Palmer counters with Caesar on Britain: “they can’t afford to burn wood, so they burn rocks” — coal, unexploited for millennia.

12. A book cost a house: the writing-surface economy

• Palmer’s price ladder: papyrus is a head of lettuce; parchment is a leather jacket — “every page of a medieval book is as expensive as that much of a leather jacket,” so a handwritten book “costs as much as a house,” a pocket copy a studio condo, an illuminated Bible a country villa. Paper sits between, “a dozen frozen prepackaged meals” — a tenth the cost of leather. The University of Paris’s great library — “the library from Europe’s perspective” — held 600 books, fewer than an airport Dan Brown kiosk, while sultans had libraries of thousands, Sub-Saharan African libraries had thousands, and China had thousands on rice paper.
• The revisionist claim on lost antiquity: most classical knowledge died not at Alexandria but between 400 and 600 AD as papyri crumbled north of the frost line where papyrus can’t grow. Monks with a thousand disintegrating books and leather for a hundred chose — “I know, Saint Augustine. I love Saint Augustine” — which is why more Augustine survives “than the entirety of all pagan classical Latin”: taste as “an unintentional moment of censorship.”
• Adoption was glacial and trust-limited: paper arrives in 800 AD but no state document is written on it for 400 years; in the 1490s Isabella d’Este still special-ordered her printed books on vellum; British Parliament kept parchment records “up until ten years ago,” and the Vatican still does. That paper cost also explains Gutenberg’s failure mode — he borrowed ~$1.5M for matched-lot paper up front and never made it back, which is why presses ran quick-turnaround pamphlets beside the six-month book.

13. Leonardo as a possible saboteur, Bacon’s honeybee — and why Italy skipped industrialization

• Palmer’s classroom provocation: Leonardo da Vinci was not a scientist — he wrote discoveries “in coded mirror writing so that nobody but him can possibly use it,” wanting the future to marvel “how did he do it?” as he marveled at the Pantheon; Brunelleschi burned his dome schematics. “This is actually a saboteur of human progress, if anything.” Bacon’s three insects flip the standard: the ant (encyclopedist hoarding a pile), the spider (theorist spinning from his own body), and the honeybee, who processes nature’s fruits into “something which is sweet and useful for humankind” — science as “the ultimate act of charity… a gift to every human who will ever live after you.”
• Her hedged verdict on the hockey stick: anthropogenic progress “always was” (better plows, bigger cabbages, eleven technical revolutions in pigments — via the fake gemstone industry — behind Raphael’s glowing colors); 1630 is when people realize and systematize it. Without Bacon “we would still have hockey sticked… probably a bit later, and we would have a slightly flatter hockey stick. Was that science? Probably.” Relatedly, history never moved slowly — her paper-in-progress on Civ (70M copies, “the number one teacher of history, bar none, since 1991”) indicts its shrinking turn-lengths as “the lies we tell ourselves.”
• On Ruggiero’s puzzle (why no Italian Industrial Revolution despite Venetian metalworking and milling): Italy was “the center of Big Finance, Big Wool, and Big Oil — which is to say Big Olive Oil” — so rich it exported the problem (England shipped crude wool to Florence because fine, non-itchy wool needs masses of olive oil), plus fragmented polities and land too valuable to mine. To Dwarkesh’s pushback that inter-city competition should have forced it: “This is not going to sound plausible to anybody, but it’s true” — documents “pretty much confirm” they built industrial looms in the 1400s and didn’t want them, preferring luxuriant artisanal fabric.

14. Censors are always wrong — and inquisitors invented peer review

• Timing is everything in information regimes: Savonarola’s pamphlets crawled to Siena and Pisa and his movement was crushed; Luther’s theses were in print in London 17 days after Wittenberg. Censorship then could shape books but “never keep up with pamphlets” — printers employed the news writers, so “the Inquisition never succeeded at arresting printers”; they’d always skipped town first. To Dwarkesh’s China-style question — just punish the shops — Palmer concedes the human cost (“you’ve had to leave your home”) but the information still moved; “we’re experiencing the same thing with social media.”
• The recurring farce: Enlightenment inquisitors raiding a clandestine bookshop (from Matytsin’s The Specter of Skepticism) shrug at Voltaire, Diderot, and the banned Encyclopédie — a book so beloved that Paris, ordered by Rome to burn it, marched it to the fire and burned Jansenist treatises instead — while inquisitors’ letters explicitly decline to censor Lucretius (“only learned people can read it… it’s fine”). The 1545 Index put arch-heretics in all caps; Palmer “eagerly flipped to M, and Machiavelli is not in all caps” — the caps went to Calvin, Zwingli, Melanchthon. Milton’s Areopagitica failed, Paradise Lost passed censorship with Satan’s republican rhetoric intact — the one demanded change was a line about astrology. “An era is always wrong about what ideas… are the really big ones” — same reason 1492 Europe, juggling “three wars at the same time,” shrugged at a New World it thought “might be even as big as the Canary Islands” (and a Vatican document from 1100 or maybe 1200, she notes, already recorded Vinland).
• The score on science-vs-Church, with numbers: twelve total Inquisition trials of scientists about science, three convictions, one execution (Giordano Bruno) — versus hundreds of thousands of trials for Judaizing and indigenous “paganism”; roughly 100 executed for atheism. Kepler was excommunicated for being Lutheran, not for planetary motion.
• The closing inversion: per Daniele Macuglia’s research, the late-17th-century Vatican inquisitors ran Europe’s most extensive experimental laboratory — deciding after Galileo that they had a duty to verify the books they censored by repeating the experiments. “They effectively invented peer review… It’s not what we expect, but history is never what we expect.”