# Room 2 — A Day in a Human Life

**Generic and anonymized.** This is not any real person's private day, and it contains no private details about any individual. It is a tradesman-type day, invented in generic patterns, specific only in ways that teach: light, sound, temperature, task, interruption, and energy. Download the same timeline as [day-data.csv](day-data.csv).

## Timeline

| Time | Light (lux) | Sound (dB) | Temp (°C) | Task | Interruption | Energy | One plain sentence |
|---|---|---|---|---|---|---|---|
| 05:00 | 5 | 32 | 16 | wake, dress | none | 90 | The room is cold and dark, and getting up takes effort. |
| 05:30 | 20 | 38 | 17 | breakfast, pack tools | none | 88 | Food and a hot drink make the morning possible. |
| 06:15 | 120 | 62 | 18 | drive to site | traffic slows the route | 84 | Road noise fills the cab, and the clock is already pressing. |
| 07:00 | 400 | 68 | 19 | site setup, check plans | missing tape measure, borrow one | 80 | The day starts with a small search instead of the first task. |
| 09:00 | 800 | 74 | 21 | build wall, course by course | phone call, 4 minutes | 68 | Each course is checked level, then the next block goes on. |
| 12:00 | 1200 | 70 | 24 | wall at noon, lunch | none | 55 | Hands are tired, the wall is halfway up, lunch is short. |
| 14:00 | 900 | 76 | 25 | cut and fit, fix a crooked course | delivery arrives late | 48 | Fixing the crooked course costs more time than laying it right. |
| 16:30 | 300 | 60 | 22 | tidy site, load tools | none | 38 | Tidy-up feels slow because the body is already spent. |
| 17:30 | 80 | 58 | 20 | drive home | traffic again | 30 | The drive home is quieter inside than the drive in. |
| 19:00 | 150 | 45 | 21 | evening, rest, plan tomorrow | none | 25 | Rest is not wasted time, it is how tomorrow gets built. |

## What to do here

1. Step through the day moment by moment. Pause at any moment and ask, in your own notes: what would more detail change here — the sound at 09:00 versus 14:00, the temperature at noon versus evening?
2. Re-order the day by energy instead of clock time. Which moments cost the most, and which moments restore anything?
3. Swap one choice, as a what-if, and keep it labeled as a what-if, never overwriting the day above: what if the wall waited and the morning was rest? Recompute the end-state yourself — energy left, work done, things postponed — and write down what changed and what did not.

Takeaway: why humans say "daylight is burning" and mean it as a physical fact, and why multitasking and interruption cost them in a way a prompt-cycle does not cost an agent. Energy here is an estimate, 0–100, not a measured vital sign — that uncertainty is labeled, not hidden.