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PODCAST

First Principles Daily

Patrick · Nerra Network

A daily narrative podcast that reasons about the world from first principles — the "magic wand number" and the "Idiot Index". Episodes alternate between a concrete example of first-principles thinking in action (historical and modern — Ford, Bessemer, the shipping container, solar, batteries, and sometimes Musk"s teams) and a deep exposé on an industry ripe for the same treatment. AI Disclosure: This podcast is curated by Patrick but uses AI-generated voice synthesis for audio production.

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All Episodes

08:57

Ep 102: Replacement razor cartridges sell for five...

First Principles Daily ·

2026/09/16

Replacement razor cartridges sell for five dollars when five blades and their plastic housing can be stamped and assembled for under thirty cents.Segment 1 — The Cold Open A pack of replacement cartridges carries a price tag near five dollars, yet the stainless-steel blades and molded plastic housing inside can be produced for less than thirty cents. The difference is not hidden in exotic alloys or rare materials. ... AI Disclosure: This podcast is curated by Patrick but uses AI-generated voice

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10:20

Ep 101: Cochlear implants once built as...

First Principles Daily ·

2026/09/15

Cochlear implants once built as single-channel custom assemblies costing tens of thousands now reach a few thousand dollars through multi-electrode arrays and volume-produced ASIC signal processors.Segment 1 — The Cold Open Early cochlear devices demanded painstaking one-off electrode placement and external hardware that kept total system prices high. Later designs replaced that approach with standardized arrays of multiple electrodes driven by compact digital processors. ... AI Disclosure: This

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08:29

Ep 100: A month's supply of vitamins that costs...

First Principles Daily ·

2026/09/14

A month's supply of vitamins that costs pennies to make in bulk sells for twelve dollars because the packaging, testing, and shelf fees have never been forced against the raw chemical price.Segment 1 — The Cold Open A bottle of multivitamins that holds thirty days of ascorbic acid, magnesium, and zinc tablets sells for twelve dollars on a pharmacy shelf. The same active compounds, bought in bulk as industrial chemicals, can be obtained for well under fifty cents. ... AI Disclosure: This podcast

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08:49

Ep 99: Open-reel video tape once ran hundreds of...

First Principles Daily ·

2026/09/13

Open-reel video tape once ran hundreds of dollars per recorded hour, yet a compact cassette using chromium dioxide tape brought the cost down near that of blank film stock.Segment 1 — The Cold Open Before the mid-1970s, recording an hour of video meant loading open reels of expensive tape that cost far more than the camera itself over time. ... AI Disclosure: This podcast is curated by Patrick but uses AI-generated voice synthesis for audio production. 📝 Full show notes, transcript & sources:

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08:14

Ep 98: A running shoe built from roughly eight...

First Principles Daily ·

2026/09/12

A running shoe built from roughly eight dollars of foam, nylon, and rubber sells for one hundred thirty dollars, showing how far current methods sit from the material floor.Segment 1 — The Cold Open A finished running shoe reaches the customer at one hundred thirty dollars while the EVA foam, nylon upper, and rubber outsole inside it together cost only about eight dollars at commodity prices. ... AI Disclosure: This podcast is curated by Patrick but uses AI-generated voice synthesis for audio

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09:06

Ep 97: The Linotype cast full lines of type from...

First Principles Daily ·

2026/09/11

The Linotype cast full lines of type from molten metal, turning hours of hand-setting a newspaper page into minutes.Segment 1 — The Cold Open Newspapers once paid teams of compositors to pick individual metal letters from wooden cases and assemble them line by line, a process that could consume most of a shift for a single page. ... AI Disclosure: This podcast is curated by Patrick but uses AI-generated voice synthesis for audio production. 📝 Full show notes, transcript & sources: read the

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09:15

Ep 96: Sofas sell for eight hundred to fifteen...

First Principles Daily ·

2026/09/10

Sofas sell for eight hundred to fifteen hundred dollars while the wood, foam, and fabric inside them can be assembled for under two hundred.Segment 1 — The Cold Open A finished sofa that reaches a customer carries a price tag several times higher than the combined cost of its lumber frame, polyurethane foam cushions, and woven fabric cover. The materials themselves are ordinary commodities that move through global supply chains at predictable prices. ... AI Disclosure: This podcast is curated by

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08:30

Ep 95: Contact lenses once meant grinding individual...

First Principles Daily ·

2026/09/09

Contact lenses once meant grinding individual pieces of glass by hand; now the raw polymer inside each one costs only pennies at scale.Segment 1 — The Cold Open In the 1930s a single pair of glass scleral lenses required hours of custom grinding on a lathe and carried a price that kept them out of reach for most people. The material itself was ordinary glass, yet the finished product reflected every step of bespoke fitting and polishing. ... AI Disclosure: This podcast is curated by Patrick but

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09:05

Ep 94: A bottle of table wine that sells for twelve...

First Principles Daily ·

2026/09/08

A bottle of table wine that sells for twelve dollars or more contains grapes and glass whose production cost sits well below two dollars. Segment 1 — The Cold Open Walk into any grocery store and a standard bottle of table wine carries a price tag that starts around twelve dollars. Inside that bottle sit grapes grown on farms and a glass container formed from sand and soda ash. ... AI Disclosure: This podcast is curated by Patrick but uses AI-generated voice synthesis for audio production. 📝

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08:23

Ep 93: An ATM withdrawal now costs pennies in power...

First Principles Daily ·

2026/09/07

An ATM withdrawal now costs pennies in power and data instead of minutes of a teller’s time because the process was rebuilt around the physics of moving paper notes and verifying balances.Segment 1 — The Cold Open Before automated tellers, every cash withdrawal required a person behind a counter to count notes, check an account, and record the transaction by hand. That labor set the cost floor for banks. ... AI Disclosure: This podcast is curated by Patrick but uses AI-generated voice synthesis

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06:23

Ep 92: A twelve-ounce latte sells for five dollars...

First Principles Daily ·

2026/09/06

A twelve-ounce latte sells for five dollars while its beans, milk, and water cost roughly twenty cents.Segment 1 — The Cold Open A twelve-ounce latte that reaches the counter for five dollars contains about twenty cents of coffee beans, milk, and water. The remaining difference does not come from any exotic material or rare processing step. ... AI Disclosure: This podcast is curated by Patrick but uses AI-generated voice synthesis for audio production. 📝 Full show notes, transcript & sources:

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08:25

Ep 91: Silk stockings once cost a week's wages; a...

First Principles Daily ·

2026/09/05

Silk stockings once cost a week's wages; a fiber pulled from coal and air brought the price to a few dollars.Segment 1 — The Cold Open Silk reached the stocking machine only after silkworms had spent weeks eating mulberry leaves and spinning cocoons that had to be harvested, sorted, and reeled by hand across distant farms. The resulting thread carried every cost of that biological supply chain plus ocean shipping and import duties. ... AI Disclosure: This podcast is curated by Patrick but uses

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09:22

Ep 90: Ibuprofen that sells for eight dollars...

First Principles Daily ·

2026/09/04

Ibuprofen that sells for eight dollars contains raw chemicals worth only a few cents, with the spread driven by packaging rules and distribution layers rather than the molecule itself.Segment 1 — The Cold Open A standard bottle of generic ibuprofen tablets reaches pharmacy shelves at prices several times higher than the cost of the active compound itself. ... AI Disclosure: This podcast is curated by Patrick but uses AI-generated voice synthesis for audio production. 📝 Full show notes,

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09:20

Ep 89: Typewriters fell from costly one-off brass...

First Principles Daily ·

2026/09/03

Typewriters fell from costly one-off brass machines to something a clerk could afford with a month's pay once production centered on interchangeable parts and cast frames. Segment 1 — The Cold Open The first commercial typewriters reached buyers as hand-fitted instruments built one at a time from brass and steel, each requiring hours of filing and alignment. ... AI Disclosure: This podcast is curated by Patrick but uses AI-generated voice synthesis for audio production. 📝 Full show notes,

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10:07

Ep 88: A lipstick tube sells for ten dollars yet...

First Principles Daily ·

2026/09/02

A lipstick tube sells for ten dollars yet holds only about fifty cents of wax, pigment, and oils, leaving a wide gap between finished price and raw-material cost. Segment 1 — The Cold Open A standard tube of lipstick reaches store shelves priced between eight and fifteen dollars. Inside sits a blend whose raw ingredients—waxes, pigments, oils, and fragrance—add up to roughly fifty cents when valued at commodity rates. ... AI Disclosure: This podcast is curated by Patrick but uses AI-generated

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07:24

Ep 87: Vertical shaft kilns once wasted large amounts...

First Principles Daily ·

2026/09/01

Vertical shaft kilns once wasted large amounts of fuel on uneven cement clinker until a rotating cylinder made the heat exchange continuous and far more efficient. Segment 1 — The Cold Open Vertical shaft kilns heated limestone in static batches, so some material reached full reaction temperature while other parts stayed undercooked, forcing operators to run the fires hotter and longer to compensate. ... AI Disclosure: This podcast is curated by Patrick but uses AI-generated voice synthesis for

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10:00

Ep 86: Printer cartridges sell for twenty-five...

First Principles Daily ·

2026/08/31

Printer cartridges sell for twenty-five dollars while the dye and glycol inside cost pennies to make, showing how authentication chips and refill models keep prices far above the material floor. Segment 1 — The Cold Open A standard retail ink cartridge for a home printer sells for roughly twenty-five dollars. Inside sits a few milliliters of dye suspended in glycol along with a molded plastic body and a small circuit board. ... AI Disclosure: This podcast is curated by Patrick but uses

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08:22

Ep 85: What once required minutes of a clerk’s time...

First Principles Daily ·

2026/08/30

What once required minutes of a clerk’s time and a phone call now clears in milliseconds for a fraction of a cent in compute and network resources. Segment 1 — The Cold Open In 1950 a Diners Club charge required the merchant to consult a printed list of numbers and, for larger amounts, place a long-distance call to confirm the cardholder’s standing. The process consumed minutes of paid human attention and tied up a telephone line. ... AI Disclosure: This podcast is curated by Patrick but uses

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09:10

Ep 84: Dry pet food that sells for several dollars a...

First Principles Daily ·

2026/08/29

Dry pet food that sells for several dollars a pound begins with commodity grains and rendered proteins that cost only pennies in bulk. Segment 1 — The Cold Open A bag of kibble that reaches a pet owner for three or four dollars per pound starts its life as a mix of rendered meat meal, corn or rice, soybean meal, and a handful of vitamin premixes. Those inputs together sit in the low tens of cents per pound at commodity prices. ... AI Disclosure: This podcast is curated by Patrick but uses

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07:38

Ep 83: Early matches poisoned workers with white...

First Principles Daily ·

2026/08/28

Early matches poisoned workers with white phosphorus and cost more per strike; red phosphorus on the striker plus potassium chlorate heads cut both the health toll and the material expense while opening the way to continuous machinery. Segment 1 — The Cold Open Matches once carried their entire ignition chemistry inside the head, using white phosphorus that released toxic fumes during both manufacture and use. ... AI Disclosure: This podcast is curated by Patrick but uses AI-generated voice

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122 results

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