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Commerce · II.01 · MMXXVI · daylight

La Bourse  /  Volume II  /  Nº II.01  /  Workbook — the student

WORKBOOK — THE STUDENT

Chapter II.01 · From Scarcity to Abundance

For the person studying this alone, or in a seminar, with no organisation to change yet. This chapter is the one that changes how you read everything else — including the rest of your degree.

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WHY THIS WORKBOOK IS DIFFERENT

Volume I's workbooks taught a method. This one teaches a discrimination, which is a slower and more durable thing to acquire.

By the end of a term you should be unable to hear the word scarce without silently asking in which sense — and you should be able to answer, on the spot, with a number. That reflex is worth more than any content in this chapter, because it is portable. It works on an economics paper, a news report, a procurement decision, a housing debate, a climate argument and a conversation about your own time, and almost nobody in any of those rooms has it.

You will build it the way it is actually built: by classifying real claims, by computing rather than asserting, and by being wrong in front of other people often enough that being wrong stops costing anything.

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PART ONE — DISCOVERY

Weeks 1–4: learn to classify

Exercise 1.1 — The scarcity log (fifteen minutes a day, four weeks)

Carry a small notebook. Every time you encounter a claim that something is scarce, short, limited, running out, insufficient or in crisis — in a lecture, a newspaper, a podcast, a conversation, a government statement — write one line:

  the claim        |  the sense  |  the evidence I would need

Use the four senses: thermodynamic · positional · entitlement · enclosed. Where you cannot tell, write undetermined and move on — that column is the interesting one.

After four weeks, count. Most students find that between sixty and eighty percent of claims they logged were positional or entitlement claims presented in the grammar of physical shortage. Do not take that figure from this page. Produce your own, and bring the count to your seminar with the log.

Exercise 1.2 — Five cases of your own (one week)

The chapter names five: light, Iceland's geothermal, Bengal and Maharashtra, the Bermuda Principles, copper scrap. Find five more. The conditions are strict and they are the point:

1. Named, dated, and locatable in a source you can cite.
2. The shortage was real and was treated as physical at the time.
3. The resolution changed an arrangement rather than a quantity.
4. There is a counterfactual — something that shows what would have happened otherwise.
5. At least one of your five must be a case you find personally unwelcome — where the arrangement that fixed it is one you would not have chosen.

The fifth condition is the exercise. A collection of cases that all flatter your politics is not evidence, it is decoration, and you will know the difference by how it feels to write the fifth one.

Exercise 1.3 — The appreciative interview (45 minutes, with someone who makes things)

Find someone who works with material — a technician, a builder, a farmer, a chef, a repairer, a lab manager — and ask exactly this:

"Tell me about a time when you needed something you could not get, and you solved it without getting it. What did you do instead? How did you know that would work?"

Then be quiet. Take notes on the move, not the outcome. What you are collecting is a catalogue of positional remedies performed by people who have never used the word, and it is the best available education in the subject.

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PART TWO — THE ARITHMETIC

Weeks 5–8: compute before you argue

Exercise 2.1 — Reproduce the chapter's figures (three hours)

Do not take these on trust. Open lib/verify/II_01.py, read it, then compute each independently — by hand, in a spreadsheet, or in whatever language you use.

1. Static life for lithium, copper and phosphate rock from the USGS 2024 reserve and production figures. Confirm 155.6, 45.5 and 336.4 years.
2. Exponential life, T = ln(1 + g·L) / ln(1 + g). Confirm lithium at 10 percent growth: 29.4 years on reserves, 42.8 on all identified resources.
3. The comparison that carries the chapter: reserves at 5 percent growth, 44.5 years. Confirm that halving g beats quadrupling the stock.
4. The circulation multiplier at p = 30, 50, 80, 90 percent.
5. The desalination energy budget: 4,000 km³ a year at 3.5 kWh/m³. Confirm 1.60 TW, and confirm it is 8.4 percent of 19 TW.

Then the part that matters most: go to the USGS Mineral Commodity Summaries yourself, find the current edition, and check whether the figures have moved. They will have. Write down by how much and in which direction, and ask yourself what that movement was actually measuring.

Exercise 2.2 — Your own depletion problem (one hour)

Choose a stock in your own life that does not regenerate on the timescale you are drawing on it. Savings. A bursary. A visa's validity. A piece of goodwill. The remaining months of a degree.

Estimate the static life. Then estimate g honestly — is your draw flat, or is it creeping? Compute the exponential life. Then compute what it would take to double the stock, and what it would take to halve the growth.

Write one sentence: which of the two is available to me, and which have I been thinking about?

Exercise 2.3 — The headroom test (two hours)

Pick three claimed limits from your scarcity log. For each, find the theoretical minimum — the thermodynamic floor, the physical bound, the information-theoretic limit, whatever the relevant science supplies — and compute the ratio of current practice to it.

Examples with known floors, to start you off: seawater desalination, ammonia synthesis, aluminium smelting, data transmission over a channel of known bandwidth, the luminous efficacy of white light.

Rank your three by headroom. The one with the smallest ratio is where research money should go and the others are engineering. That ranking, produced in an afternoon, is a more useful research policy than most of what is published as research policy.

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PART THREE — DESIGN

Weeks 9–12: apply it where you actually have power

Exercise 3.1 — Classify your institution (one week)

Your university is an economy. Run the four-question protocol on three of its shortages. Good candidates: study space in the week before exams; access to journal articles; laboratory or studio time; contact hours with a supervisor; affordable housing near campus.

For each, write one page: rival or not, thermodynamic or not, which of the five positions, enclosed or not — and the remedy the classification implies.

You will find that at least one of them is enclosed, that at least one is purely a time position solvable with a booking system, and that at least one is a title problem that nobody has named as one. Write the page anyway even where you cannot act. The page is the skill.

Exercise 3.2 — Build one anti-rival good (the term)

Make something whose value increases with the number of people using it, and give it away. A shared reading list with annotations. A glossary for your course. A set of worked solutions. A calibration of which second-hand suppliers are honest. A map of which study rooms are actually free at which hours.

Track two numbers weekly: how many people use it, and how many contribute back. At the end of term write 300 words on what the second number did to the first.

This is the only way to learn what anti-rivalry feels like from the inside, and it takes a term because the effect is invisible for the first six weeks.

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PART FOUR — DESTINY AND DELIGHT

The habits that outlast the term

Exercise 4.1 — The undetermined column (ongoing)

Return to your scarcity log and read only the entries you marked undetermined. For each, write the single piece of evidence that would settle it. Then get one of them.

The habit being built here is the one that matters most and is trained least: holding a classification open until the evidence arrives, without the discomfort of not knowing pushing you to an answer. Practise it deliberately and it stops being uncomfortable within a term.

Exercise 4.2 — The disagreement (once, with one person)

Find someone who disagrees with this chapter's central claim — that scarcity is usually positional. Do not argue. Ask them for their strongest case: a shortage they believe is genuinely, physically absolute.

Then go and compute it. Find the floor, find the headroom, find the reserve and resource figures, find where the stuff actually is.

Come back with the number, whatever it says. If they are right, you have found a real thermodynamic constraint, which is rare and valuable and belongs in your notes. If they are wrong, you have the most useful thing a student can have, which is a case you worked out yourself rather than accepted.

Exercise 4.3 — The four-sense reading of one paper (three hours)

Take a single paper from your reading list — ideally one you found persuasive — and mark every scarcity claim in it with one of the four senses. Where the paper does not say which it means, write what would settle it.

Most papers, done this way, turn out to be arguing one sense and drawing conclusions appropriate to another. That is not a flaw in the authors. It is what happens when a discipline has one word for four things, and noticing it is how you stop being a reader of economics and start being a user of it.

Bring the marked-up paper to your seminar. It is a better ninety seconds of discussion than any summary you could give.

Exercise 4.4 — The reversal (one hour, at the end of term)

Go back to the first week of your scarcity log and read your own classifications with everything you now know.

Count how many you would now classify differently. Write one paragraph on the pattern in your errors — most students find they systematically over-assigned to thermodynamic early on, because a physical explanation feels more rigorous than an institutional one and rigour is what a first-year is reaching for.

That paragraph is the most valuable thing you will write this term, because it is a calibration of your own instrument, and an instrument nobody has calibrated is an instrument nobody should trust — including you.

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THE TERM PROJECT

One shortage, classified, computed, and written

The brief. Choose one shortage. Any scale — a global commodity, a national policy question, a campus constraint, a household problem. Produce six things.

1. The claim, as it is usually stated (100 words). Quote a real source stating it, with a citation.
2. The classification (400 words). The four questions, in order, answered, with the reasoning visible — not the answer, the reasoning, so a reader can disagree with an identifiable step.
3. The arithmetic (600 words). At least three computed figures with units and sources. One of them must be a ratio of current practice to a theoretical floor, or an exponential depletion calculation, or a circulation multiplier.
4. The honest negative (300 words). The part of the shortage your classification does not dissolve. Every project must have one. A project that finds the problem entirely arranged has not looked hard enough, and this section is where the marks actually are.
5. The remedy (400 words). What follows, matched to the classification, with the first concrete step and who would have to take it.
6. The reflection (200 words). What you expected, what the arithmetic said, and what the gap between them tells you about how you were thinking before.

How it is assessed. Not on whether the shortage turned out to be positional. On whether the arithmetic is reproducible and the honest negative is real.

A project that concludes "this constraint is genuinely physical" and proves it is a first-class piece of work. A project that concludes everything is arrangement and cannot show its working is not.

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SELF-ASSESSMENT

Score yourself honestly. This is for you.

The two that matter most are the sixth and the eighth. The rest is technique and can be acquired in an afternoon. Those two are dispositions, and dispositions take a term.

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CARRYING IT FORWARD

What you will have at the end of this term, if you do the work:

• A log of sixty to a hundred real scarcity claims, classified, with your own count of how they fell out. That is primary data and it is yours.
• Five researched cases with counterfactuals, one of which you did not want to be true.
• The ability to compute an exponential depletion life in your head to within a few years, which is a party trick until the day it is not.
• One anti-rival good in the world with people using it.
• A written page on a shortage where you found the floor and it was real.

That last one is the credential. Anyone can say that abundance is possible. The person who can say where it is not, and show the ratio, is the person the room ends up believing about everything else.

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A NOTE ON READING THE REST OF THIS VOLUME

Volume II has eleven chapters and this is the first of them, which means the register you have just met is the register of all ten that follow. They argue. They compute. They name the joint that will fail before somebody else finds it.

Three habits will make the rest of the volume much easier, and all three are started in this workbook.

Check one figure per chapter against its primary source. Not all of them — one. Choose the one the argument leans on hardest. This takes twenty minutes and it is the difference between having read a book and having examined one.

Write down the honest negative of every chapter in one sentence before you write down anything else about it. If you cannot find one, you have either missed it or the chapter has failed, and you should be able to say which.

Keep the scarcity log running. It costs fifteen minutes a day, it produces primary data nobody else has, and by the end of Volume II you will have several hundred classified claims — which is, quite seriously, a dataset, and more than one good dissertation has started as less.

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APPRECIATIVE QUESTIONS FOR YOUR SEMINAR

1. When has one of us classified a shortage correctly and had the remedy change as a result — and what made us get it right that time?
2. Which of the four senses does this discipline handle best, and what does it already do well that we should take rather than rebuild?
3. What is genuinely abundant in this seminar that we have not plumbed — whose knowledge, whose time, whose data?
4. If each of us built one anti-rival good this term and kept it running, what would this course look like to the students three years behind us?