Capitalism as Architecture

CURATION LABS · AN INVESTIGATION

Capitalism as Architecture. Capital remembers. Markets compute.

What capital is, what a market is, and where knowledge fits.

Remy Kim · Curation Labs · about 35 minutes

OPEN · TAKE OUT YOUR PHONE

Where is the money in your account right now?

Illustrative

CHECKING · AVAILABLE BALANCE

$12,482.17

Updated just now

Not in a vault with your name on it.

10.2%

of US money is notes and coins held by the public. The rest is balances like this one.

Currency as a share of M2 · August 2026

You are looking at a number. So where is the money?

Federal Reserve H.6, via FRED (CURRSL, M2SL)

Let's start with something you looked at this morning. Open your banking app and there is a number. Mine is made up, yours is real. Here is a literal question, not a philosophical one: where is that money? [click] It is not in a vault with your name on it. Nobody has set aside a stack of bills for you. [click] In fact there are not enough bills. Notes and coins held by the public come to about ten percent of the US money supply, by the measure called M2, and a good part of that paper is held abroad. The other ninety percent is balances like the one on your phone. So what you are looking at is not a picture of your money. For most purposes it is your money. Hold that thought, because someone wrote this down by hand a century ago.

OPEN · COLUMBUS, OHIO · 1917

In 1917 a bank clerk wrote Bert Sayer's money as rows of numbers.

An open bank passbook: The Market Exchange Bank Co., Columbus, Ohio, in account with Bert Sayer, number 13236. Printed columns for date, withdrawn, deposited and balance, filled in by hand. — **Passbook no. 13236** · Market Exchange Bank Co. · 1917–1922

Detail of the first rows: Aug 12, balance 45.15; Sep 12 1917, withdrawn 5, balance 40.15; Sep 17 1917, withdrawn 10, balance 30.15. — The first rows, enlarged

12 SEP 1917 · AN ACTHe withdraws $5.

→

A NEW RECORDBalance $40.15.

4 JAN 1922 · THE LAST ROWHe withdraws $2.

→

A NEW RECORDBalance $0.15.

Every row is an act, and then a new record. The record decides what he can do next.

Columbus Metropolitan Library · Digital Public Library of America · public domain

Here is the same thing a century earlier. A passbook from the Market Exchange Bank in Columbus, Ohio, account number 13236, in the name of Bert Sayer. Four printed columns: date, withdrawn, deposited, balance. That is your banking app. The clerk wrote one row each time Bert came to the counter. [click] The twelfth of September 1917: he withdraws five dollars, and the clerk writes a new balance, forty dollars and fifteen cents. An act, then a new record. [click] Thirteen rows later, in January 1922, he withdraws two dollars and the balance is fifteen cents. So where was Bert's money? In that right-hand column. And notice what the column does: with fifteen cents on the page, the next thing Bert can do at that counter is very little. The record is not just a description of the past. It decides what comes next.

OPEN · THE INVESTIGATION

We will ask what capital is, what a market is, and where knowledge fits.

What is capital?the record, and what it allows
What is a market?the rules that turn acts into outcomes
Where does knowledge fit?what each one does with what people know

Everything after this is a closer look at one part of this loop.

Factors 9, 10 and 11 · knowledgecapitalism.com

Bert's passbook gives us the whole model, so let's draw it. [click] Someone acts: pays, sells, works, invents. [click] Rules decide the outcome: who gets what, and at what price. [click] The outcome is written down: a balance, a deed, a score. [click] And the record sets what comes next: what you can borrow, who you can hire, whether you can wait. Then someone acts again. That is the loop, and I promise you this: nothing after this slide adds a new topic. Every slide is a closer look at one part of these four boxes. Three questions. [click] What is capital? That is the bottom of the loop: the record, and what it allows. [click] What is a market? That is the top: the rules that turn acts into outcomes. [click] And where does knowledge fit, which is the question this company exists to ask.

ACT ONE · THE SCORE

What is capital? A score that remembers.

The record, and what it allows.

Factor 9Capital is a path-dependent scoring system

knowledgecapitalism.com/blog/09-capital-scoring-system

A stone, a house, a credit score and a city.

Act one of five

ACT ONE · YAP, 1903

On Yap, a stone on the sea floor still counted as its owner's wealth.

Under coconut palms on Uap, several large round stone discs stand on edge with wooden poles through their centres. People sit in the shade beside them. — **Stone money of Uap (Yap)** · photographed 1903 · Furness writes *fei*; today the stones are called rai · W. H. Furness 3rd, Univ. of Pennsylvania Transactions, 1904 · public domain

a family whose wealth was unquestioned … an enormous fei … lying at the bottom of the sea!

it was universally conceded … that a few hundred feet of water off shore ought not to affect its marketable value …

Furness, 1910, pp. 96–98 · as told to him by Fatumak

Nothing had to move. Everyone had to acknowledge who owned it.

W. H. Furness 3rd, The Island of Stone Money (1910), pp. 96–98

Remember Bert's passbook, where money was only a record in a clerk's hand. Here is a record with no paper at all. This is stone money on Yap, photographed by William Furness in 1903. He says the stones run from a foot to twelve feet across. [click] Furness reports a story from his friend Fatumak. One family's wealth was unquestioned, yet its stone lay at the bottom of the sea. [click] The family said the loss was no fault of the owner, and everyone accepted it. So the stone kept its value. Nothing moved. What mattered was that everyone acknowledged who owned it. One limit: this is a story Furness was told, and only stones too big to move stayed put when sold. Milton Friedman drew a parallel with gold at the New York Fed. That is his telling. Now, a house.

ACT ONE · ONE FORM

A house is three things at once: a building, a claim and a number.

A number

the appraisal: what an appraiser says it is worth, as of a date

“…my (our) opinion of the market value, as defined, of the real property that is the subject of this report is $, as of…”

A claim

who owns it, and by what right

Borrower
Owner of Public Record

Legal Description
Assessor's Parcel #

Property Rights Appraised
Fee Simple
Leasehold
Other

A building

what exists, and what it can do

# of Stories
Year Built
Design (Style)

Foundation
Concrete Slab
Crawl Space
Full Basement

Rooms
Bedrooms
Bath(s)

Field labels and closing sentence as printed on the Uniform Residential Appraisal Report, the standard US mortgage appraisal form · Fannie Mae Form 1004 / Freddie Mac Form 70, March 2005

Capital is all three at once: capability, claim and score.

Three parts of one document, set in type

Money is the easy case, because a balance is nothing but a record. Capital is bigger, and a house shows why. These are the fields of the form an appraiser fills in for nearly every mortgage in the United States, set in type. One document, and it describes the same house three ways. [click] At the bottom, the building: stories, year built, foundation. Something that exists and can shelter a family. I am not saying a house is just data. It is a house. [click] Above it, the claim: owner of public record, legal description, fee simple or leasehold. Who owns it and by what right. [click] And at the top, the last line of the form: my opinion of the market value of this property is so many dollars, as of such a date. A number. Capital is all three at once, and the rest of this act is about what that top line does.

ACT ONE · UNITED STATES

When the number rose, owners borrowed more against the same houses.

Two panels sharing a time axis from 1995 to 2012. Top: the US national house price index rises from 80 in 1995 to a peak of 184.6 in July 2006, then falls. Bottom: equity cashed out of homes each year rises from 118 billion dollars in 1995 to 876 billion in 2005, then collapses to minus 13.5 billion in 2008.

The buildings did not change. What their owners could do next did.

S&P Cotality Case-Shiller index, via FRED · equity extraction: J. Kennedy, Federal Reserve, method of Greenspan and Kennedy

Now watch the number do something. The top line is the national house price index for the United States. From 1995 to the peak in July 2006 it more than doubles. Nothing about the square footage changed. The bottom bars are the equity that owners cashed out of their homes each year, by borrowing against them. A hundred and eighteen billion dollars in 1995. Eight hundred and seventy-six billion in 2005. Then the number turns, and in 2008 the cash-out is below zero. Two economists, Mian and Sufi, went further than this picture and measured it across cities: homeowners extracted about twenty-five cents for every dollar their home equity went up. This chart alone is two lines moving together, not proof of cause. Their study is the evidence for cause. Either way the point stands. A valuation is not a description sitting on a shelf. It opens and closes what the holder can do.

ACT ONE · A COMPANY'S RECORDS

An investment rewrites a startup's records, and with them what it can attempt.

Illustrative

Before

Founders 100%

Cash: $40,000
Implied value: none on record
Who decides: two founders
Team: 2

Can attempt: two people, a few more months.

$2M for 20% of the company

THE SAME COMPANY, ONE SIGNATURE LATER

After

Founders 80%20%

Cash: $2,040,000
Implied value: $10 million
Who decides: founders and one investor
Team: 2

Can attempt: ten hires, compute, eighteen months.

Nothing was built that day. What could be attempted changed.

A constructed example; the numbers are invented

Here is the version of this that every one of us has lived. These numbers are invented, the shape is not. Two founders, forty thousand dollars, a few months left. [click] An investor puts in two million dollars for twenty percent. [click] Look at what changed. The ownership record now has two names in it. The cash record went from forty thousand to two million and forty thousand. And there is a new number that did not exist yesterday: an implied value of ten million dollars. The team is still two people. No product shipped that afternoon. [click] But what the company can attempt is completely different: ten hires, compute, eighteen months of trying. That is the same move as the house. The record changed, and the options followed.

ACT ONE · SCOREBOARDS

There are many scoreboards, and a company built the model behind the credit score.

FICO credit score · introduced 1989 (FICO 10-K) · shares published by myFICO

35%Payment history
30%Amounts owed
15%Length of credit history
10%New credit
10%Credit mix

Published shares of importance, not the formula. The model is proprietary.

OTHER SCOREBOARDS, OTHER LEDGERS

A bank balance
An appraisal
A share price

Prices are one such score. Reputation, status, and citation counts are others, running on different ledgers with different rules.

Factor 9 · knowledgecapitalism.com/blog/09-capital-scoring-system

Not a verdict on a person. A score that lenders agree to act on.

myFICO shares, Oct 2026 · FICO Form 10-K, FY2025 · Factor 9

The passbook balance was one scoreboard. There are many. Here is one you may know, the credit score. FICO introduced its score in 1989, and it publishes how much five categories matter. Payment history is the biggest, at thirty-five percent. [click] Beside it, other scoreboards: a bank balance, an appraisal, a share price. Different ledgers, different rules. [click] The essay behind this talk says prices are one such score, and reputation, status and citation counts are others. A limit: those percentages are shares of importance, not the formula, and the model is proprietary. For prices and reputation, nobody wrote one formula; the essay says these scores are produced, not decreed. None of them judges a person. Each is a record that others agree to act on. Next, a record that has lasted almost six hundred years.

ACT ONE · FLORENCE

In Florence, families at the top in 1427 are still slightly ahead today.

A wide woodcut view of Florence labelled FIORENZA: the walled city with the cathedral dome at its centre, the river Arno and its bridges, hills behind. — Florence, the “Chain Map” woodcut · Berlin impression, c. 1500–1510 · Staatliche Museen zu Berlin, Kupferstichkabinett / Jörg P. Anders · public domain

40.1%of descendants of the top third in 1427 are in the top third of earners in 2011
33.3%is what chance alone would give
about 5%more earnings today for a family at the 90th percentile in 1427 than one at the 10th

A small edge. It has lasted almost six hundred years.

G. Barone and S. Mocetti, Review of Economic Studies 88(4), 2021 · families matched by surname

One more record, and this one is the long view. In 1427 Florence took a census of every household's wealth and earnings, the Catasto. Two economists at the Bank of Italy matched the surnames in it to the city's tax records for 2011. Same city, five hundred and eighty-four years apart. [click] Take the families in the top third in 1427. Of their descendants, by surname, forty percent are in the top third of earners today. [click] If 1427 had left no trace at all, it would be thirty-three. [click] Put another way, a family near the top then earns about five percent more now than a family near the bottom then. I want to be exact about this, because it is easy to overstate. It is a small edge, and the match is by surname, not by family tree. Most of those descendants are not at the top. But it survived the Medici, plague, two world wars and the end of the republic. Capital remembers.

ACT ONE · THE ANSWER

Capital is a record of the past that changes what you can do next.

Not a pile of things. A score with write access to the future.

Factor 9 · knowledgecapitalism.com/blog/09-capital-scoring-system

ACT TWO · THE KNOWLEDGE MACHINE

What is a market? A machine nobody runs.

The rules that turn acts into outcomes.

Factor 10The market is a knowledge-utilization machine

knowledgecapitalism.com/blog/10-market-knowledge-utilization

A frost, a coffee house, a signed page and a classroom.

Act two of five

ACT TWO · HAYEK, 1945

The knowledge an economy runs on is scattered, and nobody holds it all.

Friedrich Hayek in old age, seated in a wood-panelled room in a three-piece suit and glasses, holding a small glass, at the London School of Economics in 1981. — **Friedrich Hayek**, London, 27 January 1981, thirty-six years after the paper · LSE Library · no known copyright restrictions

But a little reflection will show that there is beyond question a body of very important but unorganized knowledge which cannot possibly be called scientific in the sense of knowledge of general rules: the knowledge of the particular circumstances of time and place.

F. A. Hayek · p. 521

…the knowledge of the circumstances of which we must make use never exists in concentrated or integrated form, but solely as the dispersed bits of incomplete and frequently contradictory knowledge which all the separate individuals possess.

F. A. Hayek · p. 519

Everyone holds a piece. No one holds the whole.

F. A. Hayek, American Economic Review 35(4), September 1945

This is Friedrich Hayek, photographed in London in 1981. In 1945 he published a paper called “The Use of Knowledge in Society.” Our second question is what a market is, and Hayek starts with what an economy runs on. [click] From page 521: there is a body of very important, unorganized knowledge, and it is not general rules. It is the knowledge of the particular circumstances of time and place. [click] And from the first page, 519: the knowledge we must use never exists in concentrated form. It exists only as dispersed bits that separate individuals possess. So nobody can collect it. That is his problem. One limit: this is one economist's argument from 1945, and I am borrowing his problem, not defending every conclusion he drew. Next, a frost in Brazil.

ACT TWO · BRAZIL, 1975

A frost in Brazil in July 1975 raised coffee prices around the world.

Line chart of the monthly wholesale price of arabica coffee, 1970 to 1980, in nominal US dollars per kilogram. The price stays between about 1 and 1.65 dollars until 1975. A vertical line marks the frost in Brazil in July 1975. June 1975 is 1.23 dollars. The price climbs to a peak of 7.00 dollars in April 1977, 5.7 times the June 1975 price, then falls back.

A price can move people far away. They do not need to know about the frost.

World Bank Pink Sheet, arabica (ICO indicator price) · monthly, 1970–1980

This is the wholesale price of arabica coffee, 1970 to 1980, in dollars per kilo. In July 1975 a severe frost hit Paraná, the Brazilian state that grew about half the country's coffee. Within two months the price was up by half, from a dollar twenty-three to a dollar eighty-four. By April 1977 it was seven dollars, five point seven times the June 1975 price. I am not saying the frost did all of that. Most of the rise came over the next twenty months, and this data cannot separate the frost from other causes. The International Coffee Organization also lists political turmoil in Africa and inflation among the pressures of the early 1970s. Now picture a café owner in Hamburg who has never heard of Paraná. Her supplier's price rises, and she changes what she does. Next, what that price told her, and what it left out.

ACT TWO · ONE PRICE

A price tells people to act without telling them why.

What it carried to people far away

Use less.

Find a substitute.

Plant more.

One real price

$7.00

a kilo of arabica coffee

April 1977 · wholesale

What it left out

The cause.

Who was forced to sell.

What was not counted.

Whether it will last.

It does not matter for our purpose—and it is very significant that it does not matter—which of these two causes has made tin more scarce. All that the users of tin need to know is that some of the tin they used to consume is now more profitably employed elsewhere, and that in consequence they must economize tin.

F. A. Hayek · p. 526 · his example is hypothetical: “say tin”

The price carries the consequence. It leaves the story behind.

F. A. Hayek, American Economic Review, 1945 · price: World Bank Pink Sheet, nominal

Take one real price from the last slide: seven dollars a kilo, April 1977. Look at what a number like that does. [click] It tells people far away to use less, to find a substitute, or, if they grow it, to plant more. Nobody has to explain anything to them. [click] Now look at what it leaves out. It does not say what caused the rise, who was forced to sell, what was not counted, or whether the price will last. [click] Hayek makes the same point with tin, and he says plainly it is a hypothetical. It does not matter which cause made tin scarce. Users only need to know they must economize. To be clear, this is my reading of a real price, not a survey of what anyone did. A price carries the consequence and drops the story. Next, where prices like this get made.

ACT TWO · EXCHANGES

Exchanges began in coffee houses, and they have outlived the rooms they met in.

1763

An engraving of the inside of Jonathan's Coffee House: a crowd of men in tricorn hats in a large room, a clock, pictures of a bear and a bull on the wall, a devil at a door, and a verse caption underneath. — **Jonathan's Coffee House**, London · a satire, 1763 · After J. H. O'Neale, British Museum · public domain

Men crowded into a room.

1905

A large hall of the Chicago Board of Trade during a session, photographed from a gallery: hundreds of men crowded on the floor, tall windows letting in light. — **Chicago Board of Trade**, in session · c. 1905 · Detroit Publishing Co., Library of Congress · no known restrictions

Men crowded onto a floor.

1922

A long dark wooden desk in a high stone hall holding ticker machines under glass domes, telephones and a switchboard, with a wall panel of switches behind and empty chairs beside it. — **NYSE ticker control station** · 1922 · Library of Congress · public domain

Prices sent out by wire.

2020

Text card · not a photograph

All NYSE markets will continue to operate under normal trading hours despite the closure of the trading floors.

Stacey Cunningham, NYSE President · Intercontinental Exchange press release, 18 March 2020

No floor. Normal hours.

Rooms came and went. The room was never the market.

LSE Group history · NYSE history · ICE press release, 18 March 2020

Where does a market live? Start in London, in a coffee house. In the late 1690s a broker named John Castaing began listing stock and commodity prices at Jonathan's. This engraving is a satire from 1763, so it shows the room's reputation, not Castaing's room. [click] Chicago, 1905: a trading floor in session. [click] New York, 1922: the ticker control station, where prices leave the building by wire. [click] And March 2020. This is not a photograph. It is a sentence from the exchange's own press release. The New York floor closed on the twenty-third, and the market kept its normal hours. The floor reopened only in part, in May. Jonathan's is the best-documented beginning, not the only one. The room was never the market. Next, the founding document of one of them.

ACT TWO · NEW YORK, 1792

The New York exchange traces back to two rules and about two dozen signatures.

The Buttonwood Agreement, a single handwritten sheet in a white mount inside a glass case on a marble plinth at the New York Stock Exchange, with a brass plaque below it. — **The Buttonwood Agreement**, 17 May 1792, as displayed at the NYSE in 2026 · TiffaniB2k3 · CC BY-SA 4.0

Detail of the agreement's handwriting. The legible lines read: we will not buy or sell from this day for any person whatsoever, any kind of Public Stock, at a less rate than one quarter per Cent Commission on the Specie value, and that we will give a preference to each other in our Negotiations. The first signatures begin below. — Cropped detail · TiffaniB2k3 · CC BY-SA 4.0

Rule 1 · a minimum commission

…we will not buy or sell from this day for any person whatsoever, any kind of Public Stock, at a less rate than one quarter per Cent Commission on the Specie value

Rule 2 · a preference for each other

…and that we will give a preference to each other in our Negotiations.

A market is a set of rules for turning messages into trades.

NYSE Archives original, 17 May 1792 · wording read from the scan, SEC Historical Society

This is the Buttonwood Agreement, dated the seventeenth of May, 1792, as it is displayed at the New York Stock Exchange today. In the middle, a closer crop of the same photograph. On the right, its two rules in its own words. [click] One: the signers will not buy or sell public stock for anyone at less than a quarter of one percent commission. [click] Two: they will give each other a preference in their negotiations. A commission floor and a club. The exchange says twenty-four brokers signed. On the scan I read twenty-two signatures that day and two names added in November, but one flourish is hard to call, so say about two dozen. The Library of Congress calls the tree story a myth, and the exchange was only constituted in 1817. A market is rules for turning messages into trades. Next, one of those messages.

ACT TWO · NEW YORK, 1963

An order is a message backed by consequence, not an opinion.

The floor of the New York Stock Exchange in 1963. In the centre an older man in a suit and glasses holds a paper slip high above his head with one arm, looking to his right. Brokers crowd around him and trading posts with numbered signs stand behind. — **New York Stock Exchange floor**, 26 September 1963 · Thomas J. O'Halloran, Library of Congress · public domain

The slip is the message. Behind it:

What the trader knows
What the trader believes
What the trader needs
What the trader can afford
What the trader must do

The market does not need what I know. It needs what I know to change what I do.

NYSE trading floor, 26 September 1963

This is the floor of the New York Stock Exchange on the twenty-sixth of September, 1963. Look at the man in the middle, holding a paper slip high above his head. [click] That slip is an order. I do not know what this particular slip said, and it does not matter. What matters is what stands behind any order. [click] The trader knows something. Believes something. Needs something. Those are all in a head, and nobody on the floor can see them. [click] But the trader can also afford only so much, and must do certain things whatever they believe. Those two are what make an order different from an opinion. Anyone can hold an opinion for free. An order commits you if it is filled. The message is what reaches the market. Next, can we watch a market do this under controlled conditions? A classroom, 1962.

ACT TWO · A CLASSROOM, 1962

Nobody in Smith's classroom market saw the curves, yet prices settled where they crossed.

Left: the supply and demand steps Vernon Smith assigned to 11 buyers and 11 sellers, crossing at 2 dollars. Right: the 28 contract prices over five trading periods, starting near 1.71 dollars and settling around 2 dollars, with the spread falling from 11.8 percent to 3.5 percent.

Each trader knew one number. None of them could have computed the price.

V. L. Smith, J. Political Economy 70(2), 1962, Chart 1 · redrawn; contract prices read off the chart

Can we watch this happen under controlled conditions? Vernon Smith did, in a classroom, and it helped win him a Nobel prize. Eleven buyers and eleven sellers. Each buyer gets a card with the most they may pay. Each seller gets a card with the least they may accept. That is all anyone knows. On the left are the two curves Smith built from those cards. They cross at two dollars. Only he could see that picture. Bids and offers were called out loud, so prices were public; the curves never were. On the right is what happened: twenty-eight trades over five rounds. The first is about a dollar seventy. By the fifth round every trade is within a few cents of two dollars. It is not a perfectly smooth march, and it is one classroom test with a particular auction rule. But nobody in that room could have calculated two dollars, and the room found it.

ACT TWO · THE ANSWER

A market turns many separate acts into prices, using knowledge nobody holds whole.

Private knowledge goes in. A public price comes out.

Factor 10 · knowledgecapitalism.com/blog/10-market-knowledge-utilization

ACT THREE · THE THREE DYNAMICS

Where does knowledge fit? Follow one cup of coffee.

A cappuccino in a white cup on a saucer, with a spoon and a small biscuit, on a wooden table by a window. — Café Butter, Berlin, 2019 · Edward / Wikimedia Commons · CC0

One part of it is things. Two parts are knowledge.

ThingsWhat is used up: beans, milk, minutes.
KnowledgeWhat is copied: the recipe, the know-how.
KnowledgeWhat everyone already accepts: the rules.

The Last Economy, ch. 9 · Factor 8 · knowledgecapitalism.com

The third question, answered from inside one five-dollar purchase.

Act three of five

Third question, and it is the one this company exists to ask: where does knowledge fit? We have the record, which is capital, and the rules, which are the market. To see where knowledge sits, buy one cup of coffee. Five dollars, say. It looks like the simplest exchange there is. Here is the claim for this act. One part of that coffee is things: beans, milk, the barista's minutes. Those get used up. The other two parts are knowledge. There is the recipe and the know-how, which is copied and never used up. And there are the rules that everyone already accepts, from the currency to the size of an ounce, which is knowledge held in common. Three slides, one for each, and then we put the machine together.

ACT THREE · THINGS

Some of what you paid for is used up, starting with the beans.

Two women in wide-brimmed hats pick coffee cherries by hand from a branch, each with a bucket at the waist, among coffee trees. — **Picked** · Laos, 2012
Thomas Schoch · CC BY-SA 3.0 · cropped

Sepia stereograph, one half: a conveyor chute runs from the quay onto a steamship, bags of coffee piled on its deck, a man in a hat standing by, rail tracks and timber on the quay. — **Shipped** · Santos, Brazil, 1914
Keystone View Co. · Library of Congress · no known restrictions · cropped

Three clear bags of coffee beans, green, yellow and brown, each with a pink tape label in handwriting: 0% loss, 3% loss and 10% loss. — **Roasted** · labelled by % lost, 2023
Nachotacl · CC BY-SA 4.0 · cropped

Movementthe book's “gradient flow”

When you buy a coffee, that is Gradient Flow.

The Last Economy, chapter 9

This part is things: scarce, used up, handled by exchange.

Four photographs, four places and years, not one cup's journey

The act asks where knowledge fits in a cup of coffee, so start with the part that is not knowledge. These are four photographs from four different places and years, stages of the chain behind a cup, not one cup's journey. Women pick cherries by hand in Laos in 2012. [click] A ship is loaded at Santos, in Brazil, in 1914. [click] Roasting. Someone labelled these bags with the percentage lost as the beans roast, so part of what you pay for is literally gone. [click] And the cup, in Berlin. [click] The book I am borrowing from, The Last Economy, chapter nine, puts it in one line: when you buy a coffee, that is gradient flow. This part of the cup is things. Scarce, used up, handled by exchange. Next, the part that is not used up.

ACT THREE · KNOW-HOW

The recipe is not used up; the chain grew from 17 stores to 40,990.

Bar chart of Starbucks stores at fiscal year end, 1987 to 2025. The bars are almost invisible until the mid-1990s, then climb steadily: 17 stores in 1987, about 16,700 in 2008, 40,990 in 2025.

Replicationthe book's “circular flow”

The knowledge is not consumed. It is replicated.

The Last Economy, chapter 9

Drawing sheet 1 of US patent 726,793, Coffee Making Machine by L. Bezzera, patented 28 April 1903: a tall boiler in section with a delivery cock, and three detail views. — **Written down** · US patent 726,793, 28 April 1903, assigned to Pavoni
Luigi Bezzera · Google Patents · public domain

This part is knowledge: know-how, copied and never used up.

Starbucks 10-Ks, FY1993–2025; company timeline, FY1987–92, company-owned stores

Now the part of the cup that is knowledge. This is one chain's store count at the end of each fiscal year: 17 in 1987, 40,990 in 2025. The 1987 figure is the company's own count of company-operated stores, and nearly half of today's stores are licensed. [click] Behind every cup there is a machine, and a machine was written down once. This is Luigi Bezzera's 1903 patent for a coffee-making machine, assigned to Desiderio Pavoni of Milan. It shows a boiler and a delivery cock, not a modern espresso machine. [click] The book calls this circular flow: the knowledge is not consumed, it is replicated. This part is knowledge, know-how, copied and never used up. One limit: the chart counts stores, not know-how, so it pictures copying rather than measuring it. Next, why the record scores this badly.

ACT THREE · THE SCORE

Knowledge is the asset the scoreboard finds hardest to score.

Drawing sheet 1 of US patent 174,465, A. G. Bell, Telegraphy, patented 7 March 1876: five figures of wave diagrams and a circuit, with a clipping pasted on the right edge. — Bell, **Telegraphy**, US patent 174,465, 7 March 1876
U.S. National Archives · public domain

Two descriptions of speech by wire reached the Patent Office on 14 February 1876.

…to price information you must reveal it, and once revealed it need not be bought.

Factor 9

8.1%Q1 1947 → 39.7%Q2 2026

Software, research and creative work, as a share of US business investment.

BEA, via FRED

Factor 9Capital is a path-dependent scoring system

knowledgecapitalism.com/blog/09-capital-scoring-system

The record scores knowledge badly: it is copied and cannot be priced unseen.

US patent 174,465 · Factor 9 · BEA intellectual property products, via FRED

This is the telephone patent, number 174,465, granted to Alexander Graham Bell on the seventh of March 1876. [click] On the fourteenth of February that year, two descriptions of speech by wire reached the Patent Office: Bell's application, and a notice of intent from Elisha Gray. I am claiming only that they arrived the same day. The order, and how independent they were, is still argued. [click] Factor 9 names the trouble: to price information you must reveal it, and once revealed it need not be bought. So knowledge, which is copied and cannot be priced unseen, gets scored badly. That is the capital side of the answer. [click] Yet software, research and creative work rose from 8.1 percent of US business investment in early 1947 to 39.7 percent in the second quarter of 2026, partly because statisticians chose to count them. Next, the rails under the sale.

ACT THREE · SHARED RULES

The sale runs on rails that nobody negotiates at the counter.

CORNER CAFEIllustrative

Sat 3 Oct 202608:07

Standard time

Cappuccino 12 oz4.63

Weights and measures

Sales tax 8%0.37

A tax law, not the shop's rule

TOTAL$5.00

Dollars: legal tender by statute

Card ····4242APPROVED

A card network's rules

Thank you

A language both sides share

Detail of the front of a one-dollar Federal Reserve Note, Series 1963: the printed line THIS NOTE IS LEGAL TENDER FOR ALL DEBTS, PUBLIC AND PRIVATE, above the Boston Federal Reserve seal, with a pale SPECIMEN overprint. — $1 Federal Reserve Note, Series 1963, specimen image, detail. One side only, enlarged beyond 1.5 times actual size (31 CFR 411.1).
U.S. Currency Education Program

Structurethe book's “harmonic flow”

Driving on the right is not truer than driving on the left; it is merely settled, and the settlement is the entire value.

Factor 8 · knowledgecapitalism.com/blog/08-shared-structures-coordination

This part is knowledge too: what everyone already agrees on.

Receipt invented for the talk · legal tender: 31 U.S.C. 5103

I could not get a photograph of a real receipt, so I built one. It is marked illustrative: the shop, the numbers and the time are invented. Read it as if you were at the counter. [click] A clock everyone keeps. Twelve ounces, a size we all measure the same way. A tax set by a law the shop did not write. Five dollars, in money the law calls legal tender. A card approved under a network's rules. A language both sides share. [click] The one real artifact is the dollar bill: this note is legal tender for all debts, public and private. That does not oblige a shop to take cash, though. [click] Factor 8 says driving on the right is merely settled, and the settlement is the entire value. This part is knowledge too: what everyone already agrees on. Now let's put all three into one cup.

ACT THREE · ONE CUP

One coffee holds three dynamics, and exchange is only one of them.

Used upthe book's “gradient flow”

Things

Beans picked, shipped and roasted.

Copiedthe book's “circular flow”

Knowledge: know-how

The recipe, from 17 stores to 40,990.

Run onthe book's “harmonic flow”

Knowledge: shared rules

Dollars, ounces, tax and card rules.

One part things, two parts knowledge. The market is not the economy.

Lens: The Last Economy, ch. 9. The single-cup version is this talk's adaptation.

Now put all three into one cup. [click] Used up: the beans, picked, shipped and roasted. That is things. [click] Copied: the recipe, from 17 stores to 40,990, using it does not use it up. That is knowledge, the know-how kind. [click] Run on: the dollar, the ounce, the tax and the card rules, which nobody negotiates at the counter. That is knowledge too, the shared kind. So one part of a cup is things, and two parts are knowledge. The lens is chapter nine of The Last Economy. The book spreads its three flows over three moments of a day; putting all three in one cup is my adaptation. The market is not the economy: exchange handles only the first part. Now let's put the whole machine together.

ACT THREE · THE WHOLE MACHINE

You already know the whole machine; here it is with its usual names.

Things · movementWhat is used upbeans, milk, minutes
Knowledge · replicationWhat is copiedrecipes, formats, know-how
Knowledge · structureWhat everyone acceptscurrency, measures, law

Nothing on this slide is new. Only the names are.

Factors 9, 10 and 11 · The Last Economy, ch. 9

ACT THREE · THE ANSWER

Knowledge sits in three places: in each act, in the rules, and badly in the record.

Markets use knowledge without owning it. Capital has trouble scoring it.

Factors 8, 9 and 10 · knowledgecapitalism.com

Where does knowledge fit? In three of these four boxes, and differently in each. [click] First, in the act. Every person acts on what they alone know: the farmer about the frost, the cafe owner about her customers. That is private knowledge, and the market uses it without ever collecting it. That was act two. [click] Second, in the rules. A currency, a measure, a contract form are knowledge that everyone already accepts. That is shared knowledge, and it is the rails we just saw. [click] Third, in the record, and here it sits badly. The record is good at scoring things you can own and exclude people from. Know-how can be copied freely, and you cannot price it without showing it. So the scoreboard scores knowledge poorly. Markets use knowledge without owning it. Capital has trouble scoring it. Hold that; it is where next week starts.

ACT FOUR · THE RULES

Change the rule. Change the outcome.

Same people, same thing. Swap one box.

Factor 11Coordination mechanisms scale civilization

knowledgecapitalism.com/blog/11-coordination-mechanisms

A race, a lottery, an auction and a ticket.

Act four of five

ACT FOUR · OKLAHOMA

In Oklahoma the government opened land by a run, then a lottery, then sealed bids.

This land belonged to Native nations. Federal agreements and acts of Congress opened it to non-Native settlement.

Tents and a long crowd of men and horses around wagons at the registration booths at Orlando, Oklahoma Territory, on 15 September 1893. — Registration booths, Orlando, 15 Sep 1893 · U.S. National Archives · public domain

Covered wagons, teams of horses and a crowd gathered around a building near Fort Sill in July 1901. — Registration, Fort Sill, July 1901 · Addison, Missouri History Museum · public domain

Text card · the terms of the Act

The highest sealed bid wins.
At least $5 an acre.
Bidders must qualify as homesteaders.
The price is credited to the tribes.

Jun 1906The sealed bid

Sealed bids received at the Lawton land office.

Rewarded money

Act of 5 June 1906, 34 Stat. 213 · U.S. Statutes at Large · public domain

The race rewarded speed, the lottery luck, the sealed bid money.

Oklahoma Historical Society · A. Turner, Chronicles of Oklahoma, 1993 · not a controlled experiment

Before the three rules, whose land this was. It belonged to Native nations: the Creek and Seminole, the Kiowa, Comanche and Apache, and others. Federal agreements and acts of Congress opened it. The Kiowa later alleged theirs was signed through deceitful interpretation. The property rights being handed out were themselves created by statute. [click] 1893: register at one of nine booths, then race. It rewarded speed, and sooners still got in. [click] 1901: about 165,000 registered for 13,000 homesteads, and a drawing set the order. Luck. [click] 1906: sealed bids, at least five dollars an acre, credited to the tribes. Money. Different tribes, different land, one homestead frame, so this is not a controlled experiment. Now one you can run yourselves.

ACT FOUR · YOUR TURN

Four rules give the same ticket and the same people four different outcomes.

Illustrative · one ticket

Ana would pay up to $300, arrives third
Ben up to $120, arrives second
Chi up to $80, arrives first

First come, first served

The seller sets $60. First in line may buy.

Chifirst in line
Bensecond
Anathird

Chipays $60Set by the seller

Lottery

The seller sets $60. One name is drawn.

Anaone chance in three
Benthe draw
Chione chance in three

Benpays $60Set by the seller

Posted price

The seller sets $150. First taker buys.

Chi$80 is under $150
Ben$120 is under $150
Ana$300 covers $150

Anapays $150Set by the seller

Auction

The price climbs from $60 until one bidder is left.

Chidrops out at $80
Bendrops out at $120
Analast one in

Anapays $120Set by Ben's limit

Three rules let the seller name the price. The fourth found it in what the bidders knew.

A constructed example; the people and prices are invented

Now do it yourself, with something smaller than land. One concert ticket, three people. This is an invented example, and everything is fixed in advance: what each would pay, and the order they arrive. [click] First come, first served. The seller prints sixty dollars on the ticket. [click] Chi is first in line. [click] Chi gets it for sixty. [click] A lottery, same sixty dollars. [click] The draw picks Ben. [click] Ben pays sixty. [click] A posted price: the seller decides it should be a hundred and fifty. [click] Chi and Ben walk away; only Ana will pay that. [click] Ana, for a hundred and fifty. [click] Now an auction. The price starts at sixty and climbs. [click] At eighty, Chi drops out. [click] At a hundred and twenty, Ben drops out, and Ana is the last one in. [click] She pays a hundred and twenty, and look at where that number came from. Not from the seller. From Ben's limit, which the seller never knew. Three of these rules let the seller name the price. The fourth found the price in what the bidders knew. Nothing about the ticket or the people changed. Only the rule did.

ACT FOUR · TWO WEBSITES

eBay ended auctions on the clock, Amazon extended them, and bidders behaved differently.

Share of auctions whose last bid arrived within ten seconds, one minute, ten minutes and one hour of the close. eBay: 12, 37, 55 and 68 percent. Amazon: 0, 0.4, 12 and 23 percent.

eBay's ruleThe auction ends at a fixed time.
Amazon's ruleIt runs on until ten minutes pass without a bid.

One line in the rules. Somebody wrote it.

A. Roth and A. Ockenfels, American Economic Review 92(4), 2002 · 240 auctions per site · a comparison, not an experiment

Here is a case from our own world, where the rule is one line in a codebase. Around 2000, eBay and Amazon both ran auction sites, selling the same kinds of things with almost the same auction. Two economists compared two hundred and forty auctions on each. Read the chart from the left. In thirty-seven percent of eBay auctions, the last bid came in the final minute. On Amazon it was one auction out of two hundred and forty. [click] The difference in the rules is this. eBay's auction ended at a fixed time, so bidding at the last second paid off. Amazon's kept running until ten minutes passed with no bid, so it did not. The authors are careful: this is a comparison, not a controlled experiment, and people chose which site to use. But the pattern is hard to miss. And notice what kind of fact that rule is. It is not a law of markets. A product team decided it.

ACT FIVE · THE ARCHITECTURE

So what is capitalism? A building with dates on it.

None of it is natural. Money was invented

Factor 11Coordination mechanisms scale civilization

knowledgecapitalism.com/blog/11-coordination-mechanisms

Every part of the loop was put there by someone.

Act five of five

ACT FIVE · SEVEN DATES

Every part of the system has a date and an author.

A small oval electrum coin stamped with a roaring lion's head, mounted on grey cloth. — Electrum coin, Sardis · ArchaiOptix · CC BY-SA 4.0

A page of a handwritten Venetian Senate register headed with the date 19 March 1474. — Senate register, Venice · Archivio di Stato di Venezia · public domain

A printed folio of Pacioli's Summa with a woodcut portrait of a seated figure at the left and a decorated initial. — Summa, Venice · Smithsonian Libraries · not in copyright

A handwritten Dutch receipt dated 9 September 1606, beside a ledger page of dividend payments. — Receipt, Enkhuizen · Westfries Archief · public domain

The printed first page of the Limited Liability Act, 1855, with its title and the opening of the preamble. — The Act, annotated edition · Internet Archive · public domain

A film still of a man speaking at a lectern with a microphone, national flags behind him and two men seated beside him, at the opening of the Bretton Woods conference in July 1944. — Conference opening, July 1944 · U.S. National Archives, RG 208 · public domain

1994

Text card

$617 million

ten licences, 47 rounds

FCC's first auction, on rules economists proposed.

Public notice, 2 Aug 1994 · FCC · U.S. government work

Each has a birth date and an author. None of them was always there.

Kroll · Kostylo · Sangster · Westfries Archief · Chaplin · FCC 97-353

Every part of this system has a birthday. Here are seven. [click] A Lydian coin, struck by kings at Sardis. The start date is argued over, so I give a range. Then Venice in 1474: the Senate protects a new invention for up to ten years. [click] 1494: Pacioli prints Venice's method of double entry. He did not invent it. And 1606: this is a receipt, not a share certificate, the oldest surviving VOC share record. [click] 1855: Parliament lets some companies limit liability, though not insurers. 1944: forty-four nations adopt rules built on two plans from 1942. [click] And 1994: the first FCC auction, on rules economists proposed. Six hundred and seventeen million dollars. Some of these firsts are argued over, so I say earliest surviving, not first. Next, a city that was partly drawn.

ACT FIVE · BARCELONA

Some of it grew and some of it was drawn, like Barcelona.

Barcelona from directly above. The upper left is a regular grid of octagonal blocks, the Eixample. The lower centre and right is a dense, irregular tangle of streets, the old town, with the Ciutadella park at the right. — Barcelona, aerial orthophoto, 2025 layer · Institut Cartogràfic i Geològic de Catalunya · CC BY 4.0

Every step and every movement of the multitude, even in what are termed enlightened ages, are made with equal blindness to the future, and nations stumble upon establishments, which are indeed the result of human action, but not the execution of any human design.

Adam Ferguson, An Essay on the History of Civil Society, 1767, Part III, Section II

The economy has both: markets nobody planned, and firms planned inside.

Part of it was drawn by someone. Part of it nobody drew.

Ferguson 1767 · Coase, Economica, 1937 · Simon, J. Econ. Perspectives, 1991

This is Barcelona from directly above. The old town piled up over centuries. [click] That is the part that grew. [click] This grid is the Eixample, drawn once, in 1859, by the engineer Ildefons Cerdà. It took about a century to build, and many of the drawing's rules were never applied, so even the grid is not the plan. [click] In 1767 Adam Ferguson wrote that nations stumble upon establishments, which are indeed the result of human action, but not the execution of any human design. [click] An economy is both. Markets nobody planned. Firms planned from inside: Coase noticed that a worker moves between departments because he is ordered to, not because a price changed. So architecture does not mean one architect. Next, the claim in one sentence.

ACT FIVE · THE THESIS

Capitalism is architecture, not nature.

Real constraintsThese stay, whatever we writescarcity, time, energy, uncertainty
Written rulesThese are the part we wroteownership, accounting, market design, contracts, settlement

Architecture has constraints and consequences. It also has a design space.

Factor 11 · knowledgecapitalism.com/blog/11-coordination-mechanisms

CLOSE · WHAT WE FOUND

Capital remembers, markets compute, and people built both.

What is capital?

A record of the past that changes what its holder can do next.
Factor 9 · knowledgecapitalism.com/blog/09-capital-scoring-system
What is a market?

Rules that turn many separate acts into prices, using knowledge nobody holds whole.
Factor 10 · knowledgecapitalism.com/blog/10-market-knowledge-utilization
Where does knowledge fit?

People act on it, the rules are made of it, and capital scores it badly.
Factors 8, 9 and 10
So what is capitalism?

Mechanisms people built, at dates we can name. Architecture, not nature.
Factor 11 · knowledgecapitalism.com/blog/11-coordination-mechanisms

Next week: what knowledge and technology change, and how these mechanisms get built.

Factors 11 and 12 · knowledgecapitalism.com

Let's go back to where we started. We asked three questions. [click] What is capital? A record of the past that changes what its holder can do next. A stone nobody moved, a number on a house, a column in a passbook. [click] What is a market? Rules that turn many separate acts into prices, using knowledge nobody holds whole. A frost in Brazil reaches a cafe owner who never heard of it. [click] Where does knowledge fit? In two places. Markets use it without owning it, because people act on what they know. The rules are made of it, because a rule is something everyone already accepts. And capital has trouble scoring it, because an idea can be copied and cannot be priced without being given away. [click] And so, what is capitalism? A set of mechanisms that people built, at dates we can name. Architecture, not nature. That is the investigation. Next week we take the obvious next question: if it is architecture, what do knowledge and technology change about it, and how do mechanisms like these get built.

APPENDIX · JANUARY 1986

On the day of the Challenger accident one contractor's shares fell far further.

Share price change on 28 January 1986 for the four main shuttle contractors: Morton Thiokol minus 11.86 percent, Martin Marietta minus 3.25, Rockwell minus 2.48, Lockheed minus 2.14.

The same dayMorton Thiokol closed down 11.86%.The other three: 2.14% to 3.25%.
Five months laterThe inquiry named its O-ring seals.Rogers Commission, June 1986.
What the authors could not findWho informed the price.No insider trades that day.

The price moved. It did not say why, and nobody has shown who knew.

M. Maloney and J. H. Mulherin, Journal of Corporate Finance 9, 2003, Table 1

An optional case, and a sober one. Seven people died on the Challenger on the twenty-eighth of January 1986: Scobee, Smith, Resnik, Onizuka, McNair, Jarvis and McAuliffe. Four companies built the main parts of the shuttle. By the close of trading that day, three of them were down two or three percent. Morton Thiokol was down nearly twelve. Five months later the inquiry found that Thiokol's O-ring seals were the cause. The authors of this study say the market seemingly singled out that firm, and they are careful with that word. They looked for who traded on knowledge, and could not find them. The gap opened over the afternoon, not in minutes. I use it for one point only: a price can carry a consequence without carrying an explanation.

APPENDIX · THE CASES

What each real case supports, and what it does not.

Passbook, 1917–22. A balance is a record; each row is an act and a new record. Not: that all money is a bank record.
Cash, 10.2% of M2. Most dollars are balances. Not: that cash is vanishing; 6.6% to 11.3% since 1959.
Yap. Furness, 1910: stones changed owners without moving. Not: Friedman's Federal Reserve parallel, which is his telling.
Appraisal form. One document holds building, claim and number. Not: a real appraisal; the form is blank.
House prices and cash-outs. They rose together to 2005–06. Not: cause, from this chart alone.
Credit score. Five published shares of importance; introduced 1989. Not: the formula, which is proprietary.
Florence. 40.1% against 33.3% by chance, matched by surname. Not: “the same families still rule”.
Hayek, 1945. Knowledge is dispersed; prices coordinate without a planner. Not: that prices are always right.
Frost, 1975. Arabica rose 5.7 times in 22 months, nominal. Not: that the frost alone did it; it explains part.
Coffee houses; March 2020. Markets outlived their rooms. Not: that the Tontine was the brokers' first home.
Buttonwood, 1792. A two-rule agreement. Not: “24 signed that day”; 22 did, two names came later.
Smith, 1962. Curves hidden, bids public, prices settled near $2.00. Not: a general law; one test.
Coffee chain photographs. Real stages of the chain. Not: one cup's journey; different places and years.
Store counts. 17 at fiscal year-end 1987, 40,990 in 2025. Not: the count at the 1987 purchase.
Telephone, 1876. Two descriptions reached the Patent Office the same day. Not: that a filing rule decided it.
Ideas in investment. 8.1% in 1947, 39.7% in 2026 (BEA). Not: the “90% of market value” estimate.
Three flows. A lens from The Last Economy, ch. 9. Not: a theorem about economies.
Oklahoma. One homestead law, three allocation rules. Not: the same parcel three times.
eBay and Amazon. 37% against 0.4% with a last-minute bid. Not: an experiment; people chose their site.
Dated institutions. Each has a first documented instance. Not: that one person invented any of them.
Barcelona. Old town grown, Eixample drawn by Cerdà, 1859. Not: that the economy has one architect.
Challenger. One contractor closed down 11.86%. Not: that the market “knew”; the authors say “seemingly”.

A card to photograph, not a slide to read.

Sources and page references: the research sections behind analysis 25

APPENDIX · CREDITS

Every image, its source, and its licence.

Passbook, 1917–22. Market Exchange Bank Co.; Columbus Metropolitan Library, via DPLA. Public domain. Shown whole and as a detail.
Stone money of Yap, 1903. W. H. Furness 3rd; Univ. of Pennsylvania Transactions, 1904. Public domain. Cropped.
Appraisal form. Fannie Mae Form 1004 / Freddie Mac Form 70, 2005. Field labels transcribed; no image of the form is shown.
Florence, “Chain Map” woodcut. Staatliche Museen zu Berlin, Kupferstichkabinett / Jörg P. Anders. Public domain.
Jonathan's Coffee House, 1763. After J. H. O'Neale; British Museum. Public domain.
Chicago Board of Trade, c. 1905. Detroit Publishing Co.; Library of Congress. No known restrictions.
NYSE ticker control station, 1922. Library of Congress. Public domain.
Buttonwood Agreement on display, 2026. TiffaniB2k3, Wikimedia Commons. CC BY-SA 4.0. Shown whole and cropped.
NYSE floor, 26 Sep 1963. Thomas J. O'Halloran; Library of Congress. Public domain. Cropped.
Cup, Café Butter, Berlin, 2019. Edward, Wikimedia Commons. CC0. Cropped.
Coffee pickers, Laos, 2012. Thomas Schoch, Wikimedia Commons. CC BY-SA 3.0. Cropped.
Loading coffee at Santos, 1914. Keystone View Co.; Library of Congress. No known restrictions. Cropped.
Roasting samples, 2023. Nachotacl, Wikimedia Commons. CC BY-SA 4.0. Cropped.
Espresso machine, US patent 726,793, 1903. Luigi Bezzera; Google Patents. Public domain.
Telephone, US patent 174,465, 1876. U.S. National Archives. Public domain.
$1 Federal Reserve Note, 1963, specimen. U.S. Currency Education Program. One side, enlarged (31 CFR 411.1).
Registration booths, Orlando, 1893. U.S. National Archives. Public domain.
Registration at Fort Sill, 1901. George A. Addison; Missouri History Museum. Public domain.
Lydian electrum coin. ArchaiOptix, Wikimedia Commons. CC BY-SA 4.0. Cropped.
Venetian patent statute, 1474. Archivio di Stato di Venezia. Public domain. Cropped.
Pacioli, Summa, 1494. Smithsonian Libraries. Not in copyright. Cropped.
VOC receipt, 1606. Westfries Archief. Public domain. Cropped.
Limited Liability Act, 1855. Annotated edition, via Internet Archive. Public domain. Cropped.
Bretton Woods opening, 1944. U.S. National Archives, RG 208. Public domain. Cropped.
Barcelona orthophoto, 2025. Institut Cartogràfic i Geològic de Catalunya. CC BY 4.0. Cropped; outlines added.
Charts. Drawn for this talk from World Bank, Federal Reserve, BEA and company filings, and from the four cited papers.
CC BY-SA images are cropped but not otherwise altered. Licence texts: creativecommons.org/licenses.

Every image here is open, and credited as its licence asks.

Full provenance: visual-assets/MANIFEST.md