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Commerce · V.02 · MMXXVI · daylight

La Bourse  /  Volume V  /  Nº V.02  /  Workbook — the student

WORKBOOK — THE STUDENT

Chapter V.02 · Work as Metabolism

For the person studying this alone, or in a seminar, with no firm to schedule and no roster to design. You have something better: a system of one, fully instrumented, that you control completely and can measure for a whole term.

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WHY THIS WORKBOOK IS DIFFERENT

The chapter was written for someone with a payroll and an injury statistic. You have neither. What you do have is the only working body you will ever be issued, about to begin fifty years of converting food into effort, and a term in which nobody is yet forcing the schedule.

That is not a weaker case than the firm's. It is a cleaner one. The firm cannot randomise, cannot measure its own intensity, and cannot run a control. You can run a within-subject design on yourself, with a baseline, for twelve weeks, and you will finish it knowing something about your own working capacity that most people never learn and that nobody will ever tell you.

Everything in this workbook is the chapter's arithmetic, done on a system of one. The identity is the same. The ceiling is the same. The blindness to your own deficit is, unfortunately, exactly the same.

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PART ONE — DISCOVERY

Weeks 1–4: find what is already working in you

Exercise 1.1 — Your own MET day (60 minutes)

Reconstruct a typical twenty-four hours and cost it, exactly as the chapter costs the labourer's day. You need your body mass in kilograms and a MET value for each block of the day; the Compendium of Physical Activities is freely available and has a value for almost everything.

  resting metabolic rate  =  1 kcal/kg/h  x  your kg  x  24 h
  a block of the day      =  MET  x  your kg  x  hours
  physical activity level =  the day's total  /  your resting rate

Compare your PAL to the chapter's two anchors: the labourer's 2.68 and the sustained human ceiling of 2.5 x BMR. Almost every student will land nearer 1.5 than 2.5, and that is the finding, not a criticism: your binding constraint is not energy. Write down what you think it actually is before reading on.

Exercise 1.2 — Where the hours go (90 minutes, then a week of logging)

There are 168 hours in a week. At eight hours of sleep a night that leaves 112 waking. Log a full week in half-hour blocks — not planned, actual — and sort every block into one of four columns.

The point is not to shrink the fourth column. It is to find out whether the Recovering column is a real column or a residual — whether you recover on purpose or only when nothing else is competing for the hour.

Exercise 1.3 — The appreciative interview (45 minutes, with another person)

Find someone whose sustained working life you admire — not their achievements, their sustainability — and ask exactly this:

"Tell me about a period when you were working well and it was lasting. Not the most productive stretch — the one you could have kept doing. What was the schedule? What did you protect? What did you have to refuse?"

Then be quiet and take notes on the conditions. You are collecting a dataset on recovery design from people who have solved it, and almost nobody asks them, because the usual question is about output.

Exercise 1.4 — Find your own positive core (30 minutes)

One part of your week is already well designed for sustainability and you did not plan it. A regular walk. A meal with somebody. A day you do not check anything. Name it. It is your control condition, and you will protect it unchanged through everything that follows, so that you have one fixed point.

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PART TWO — THE ARITHMETIC

Weeks 5–7: compute before you argue

Exercise 2.1 — Reproduce the chapter's figures (2 hours)

Do not take them on trust. Open lib/verify/V_02.py, read it, and compute these independently — by hand, or in a spreadsheet, or in whatever language you use.

1. The office and site shift costs, gross and net, and the 9.0× ratio.
2. The labourer's day: 64.4 MET-hours, 4,508 kcal, 2.68 × BMR, and the 308 kcal/day overshoot above the 4,200 kcal ceiling.
3. The second route: 40.0 × 0.33 = 13.2 mL/kg/min, which is 3.77 MET, and the 1.46 ratio against site work.
4. The cheap brain: 336 kcal/day, 14.0 kcal/h, 0.70 kcal/h of increment, 5.60 kcal a day, 0.33 percent of the day's energy.
5. The crossover arithmetic: 2c = −0.65 / 0.13353 = −4.8678, and H* = 49 × 1.22806 = 60.2 hours.

Then do the thing that matters most: find one figure in this chapter you can check against an outside source, and check it. If you find a discrepancy, write it down and bring it to your seminar. This edition wants to be checked.

Exercise 2.2 — Move the anchors yourself (45 minutes)

The chapter reports that the peak of total output runs from 56.7 to 71.2 hours a week, a width of 14.5 hours, depending on where you pin the elasticity. Reproduce that range, then extend it: pick your own two anchors, defend them in one sentence each, and compute your own peak.

You will discover the lesson faster by doing it than by reading it. A quantity that moves by two working days when you nudge an assumption is not a quantity you should quote to three significant figures. Learn to feel that before you ever have to say it out loud in a meeting.

Exercise 2.3 — Your own identity page (60 minutes)

Build the student version of the chapter's two-line page.

  Y/N   =   (Y/H)   x   (H/N)

  Y   something you produce and can count: pages of primary source read,
      problems completed, words drafted, lines committed, sessions trained
  H   hours actually spent on it, logged the same day
  N   weeks

Compute all three every week for the rest of term. When a week is bad, the page will tell you which term moved, and that is a different conversation from "I had a bad week."

Exercise 2.4 — The honest negative, practised (30 minutes)

The chapter's honest negative is that below the 49-hour threshold the only well-identified curve we have says shorter hours cost output proportionally — a cut from 46 hours to 38 predicting −17.4 percent, needing a 21.1 percent rise in output per hour to offset.

Now do it for a position of your own. Take something you believe about how you should work, and write the strongest honest negative against it — the version that troubles you, not a straw one. If you cannot write it, you do not yet understand your own position well enough to hold it.

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PART THREE — DREAM AND DESIGN

Weeks 8–10: build the experiment

Exercise 3.1 — The present-tense week (60 minutes)

Write 500 words describing an ordinary working week ten years from now, in the present tense, as description rather than aspiration.

Constraints, and they are the whole exercise:

• Describe a Wednesday. Ordinary hours, ordinary tasks.
• State the hours. Actual numbers.
• Include the recovery, by name and by hour, as part of the week rather than as what is left.
• Include one thing that is difficult and stays difficult.

Most people cannot write the third constraint, and that is the finding. A week with no recovery designed into it is not a schedule; it is a hope with a calendar attached.

Exercise 3.2 — Your baseline document (90 minutes)

The most valuable artifact in this workbook, and it is one page.

1. The metric. Defined so precisely that another person would compute it identically. "Studying" is not a metric. "Problems completed from the set, logged the day of" is.
2. The period. Four weeks minimum, so it contains normal variation, and you will need its standard deviation later.
3. The method. How and when you record, including what you do about a missed day. Decide that now, not later.
4. The verifier. A named human being who will look at it weekly. Not optional and not symbolic.
5. The failure condition. Written before you start: what result would make you say this did not work? A trial that cannot fail teaches nothing.
6. Two signatures. Actually sign it.

Then leave it alone for four weeks and change nothing. Measuring before intervening feels like waste. It is the foundation of every claim you will ever make about yourself.

Exercise 3.3 — Design the intervention (45 minutes)

One change to your working time. Not three. Candidates, in rough order of how cleanly they measure:

• A hard stop at a fixed hour, five days a week.
• A protected eight hours in bed, every night, for four weeks.
• One whole day a week with nothing produced on it.
• Two hours of undisturbed work at the same hour daily, everything else refused.

Size it against your own noise, exactly as a firm would: the effect must exceed about three times the week-to-week standard deviation of your metric, or the result will be arguable whatever happens. Compute that number from your baseline before you choose. If nothing you are willing to do clears it, extend the period rather than exaggerating the intervention.

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PART FOUR — DESTINY AND DELIGHT

Weeks 11–12: make it hold, and enjoy it

Exercise 4.1 — The sleep arithmetic (20 minutes, then a fortnight)

Van Dongen's subjects were held at six hours in bed for fourteen nights. Against eight hours, that is (8 − 6) × 14 = 28 hours of debt — and they degraded to the equivalent of two nights of total sleep loss while rating their own sleepiness as barely changed.

So: for fourteen nights, hold eight hours in bed, and record both a daily self-rating and one objective measure — a timed task, a reaction test, the number of errors in something you check anyway. Then compare the two series.

The exercise is not really about sleep. It is about discovering, on yourself, that your self-report and your performance are different instruments, and that when they disagree the self-report is the one to distrust.

Exercise 4.2 — The three conditions (30 minutes)

The chapter names three forces that hold a working-time design once nobody is pushing. Translate each to a life:

• Insurance → a cost you actually pay when you overrun. Name it honestly.
• The identity → your weekly three-line page, published to one person.
• Portability → a limit that other people know about, so you are not renegotiating it alone at eleven at night.

Write your three. The third is the one students skip and the one that decides it.

Exercise 4.3 — Watch for intensification (ongoing)

The chapter's hardest warning: hours fall, output holds, and what actually happened is the same work compressed with the breaks taken out. Output per hour genuinely rose. Recovery genuinely fell. The result looks like success and is not.

So log one intensity measure alongside your output: breaks actually taken, or the number of half-hour blocks with no pause either side. If hours fall and that measure worsens, you have not shortened your week. You have concentrated it.

Exercise 4.4 — Delight, on purpose (ongoing)

Recovery that is not pleasant does not survive a busy month. Choose one element of yours and make it genuinely good: the walk with the particular view, the meal you look forward to, the hour of the day you like best. This is not indulgence — it is the adoption mechanism, and it is what determines whether the design is still running in March.

Complete the sentence: the part of this week I look forward to is ___. If you cannot, redesign until you can.

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THE TERM PROJECT

One experiment, carried the whole way

Run a proper within-subject trial on your own working time, for a term.

Deliverables.

1. The discovery memo (800 words). Your MET day, your week of logging, the four columns, two appreciative interviews, and your named positive core.
2. The signed baseline (1 page). Metric, period, method, verifier, failure condition, two signatures. Four weeks of data attached.
3. The arithmetic (800 words plus workings). Your three-line identity for the baseline period, its standard deviation, your three-sigma threshold, and the intervention sized against it. State one honest negative — a condition under which your design fails.
4. The intervention (run, not described). Four weeks minimum, unchanged.
5. The result (1 page). All three terms of the identity before and after, the intensity measure, and whether the failure condition was triggered.
6. The reflection (500 words). What you expected, what happened, and what the gap between them tells you about your own instrument.

How it is assessed. Not on whether your working life improved. On whether the measurement was honest — whether a reader could reproduce your numbers, whether your failure condition was written in advance, and whether you reported a result that did not flatter you.

A null result, measured cleanly, is a first-class piece of work. A triumph that cannot be reproduced 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 seventh. The rest can be learned in a week. Those two are habits, and habits take a term.

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CARRYING IT FORWARD

A working life is about 1,725 hours a year at a 37.5-hour week over forty-six working weeks, for something like forty years. One hour a day of genuinely recovered capacity is 230 hours a year — 12.4 percent of a working year, compounding for four decades, and it is invisible on every instrument your employer will ever use.

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

• A four-week baseline on something that matters, and the habit of building one.
• Your own three-line identity, computed weekly, which almost nobody in any room can produce on request.
• One completed measure–intervene–report cycle, in your hand, describable in ninety seconds.
• Direct personal evidence that your self-report and your performance are different instruments.

That last one is the one that will still be paying in twenty years. Most people manage their working capacity by how they feel, using the one instrument the evidence says is blind to the thing they are managing. You will not have to.

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APPRECIATIVE QUESTIONS FOR YOUR SEMINAR

1. When has one of you worked at a pace you could have sustained indefinitely? What made it possible, and what would it take to have more of that?
2. Which recovery practice in this room is already working well — and how would we prove it to somebody outside this room?
3. What is the best output measure any of us has that cannot be fudged, and what makes it trustworthy?
4. If everyone here left with one signed baseline and one failure condition, what would this group know by the end of term that no one currently knows?