# Points are not risk — lesson

Gym heading: Scale. Written before the code (Sep 7 2026). The teach screen shows this text; the answer key implements the rule in it and nothing else. Distances are in M everywhere. Harness, confidence, persistence, and reveal format follow stop-vs-noise; the bars come from point-at-the-bar's generator v2.

Choices made where the order was silent:

- The band is ten points tall, centred on the last close, on both charts of every rep. The box carries its own label, "10 pts"; no price axis is drawn and M is never on the screen, so nothing but the bars says what ten points is worth.
- Each chart is scaled to its own bars, the way a platform scales a day. The same ten points is a different box on each side because the ruler behind it is different. The read is the box against the bars of its own chart; the two charts share nothing else.
- The two charts are two different days from the same family: point-at-the-bar's generator v2 regimes (rotation, leg, and a leg that turns into rotation), with no line drawn and nothing built at one. Each chart draws its own regime and its own mirroring; the case is drawn separately and only sets the two M's in points, so the shape of either chart says nothing about the answer.
- The M ratio between the two charts is drawn from a range (drill 0.3–0.7, holdout 0.2–0.85), so the fast chart is sometimes barely faster. The fast chart sits left or right at even odds, except that a one-sided case puts it where the case says.
- Four cases at a quarter each: left only, right only, both, neither. Some bands sit within a few percent of 1.0 M on one chart on purpose; the reveal shows the numbers either way.
- M is the gym's M, the median range of the last 20 bars. "The session" in the lesson is those bars.
- Soft clock 8 seconds, as stop-vs-noise: two glances and one comparison each.

Persistent header: **"Training your eye for the ruler behind the number."**

## Before you measure

- **Points** — A distance in points means something different every day. Ten points is a third of a quiet day's M and a tenth of a fast day's. Any distance used as a stop, target, or band is stated in M, the median bar range of the session. A number in points has no meaning until you know what M is today.
- **The band** — ten points, centred on the last close, drawn on both charts. It stands for any distance someone wrote down in points: a stop, a target, a zone. It is the same ten points on the left and on the right.
- **Noise** — one M: the distance a normal bar travels without meaning anything. A band shorter than that sits inside the noise; a normal bar crosses it without the market deciding anything. A band of one M or more is a leg: price has to go somewhere to cross it.
- **The rule** — the band is inside noise on a chart when its height is **less than 1.0 M for that chart**. Each chart has its own M, so the same band can be noise on one and a leg on the other, or noise on both, or a leg on both.
- **Why it matters at the trade** — Decision: never size, place, or judge a distance in points. Ask "how many M is that?" first, every time. A ten-point stop is a coin flip against a doji on one of these days and a real stop on the other. The number didn't change; the ruler did.
- **What it doesn't say** — inside noise is not a forecast. It says nothing about direction, nothing about whether a stop clears the last swing (Stop vs noise), nothing about whether a target has room (Runway). It only says what ten points is worth today.
- **M** — the median high-to-low range of the last 20 bars. Every distance here is in M. M is not shown on this screen; the bars are. Read the band against them.
- **Confidence is a number** — Low means 40%, Medium 65%, High 90% that your call is right. Scored Brier-style: sure and wrong costs 0.81, unsure and wrong costs 0.16, sure and right costs 0.01. Being certain is as expensive as being wrong.

## The read

Two charts, one box each, the same ten points. On each chart, one comparison: is the box shorter than a normal bar's range? Then the question: on which chart is the band inside the noise?

## The rep

Two charts side by side from the same family, different M, a ten-point box around the last close on both. M is not stated. The question, in full: **"The box is the same ten points on both charts. On which chart is it inside the noise?"** Left, Right, Both, or Neither, with a confidence.

## The reveal

The charts again with one M drawn beside each box; M for each chart in points; the band in M on each, the division shown; the verdict; and one takeaway line. Templates:

- Left only: **"Same ten points: {L} M on the left, {R} M on the right. Left is noise, right is a leg. The points didn't change; the ruler did."**
- Right only: **"Same ten points: {L} M on the left, {R} M on the right. Left is a leg, right is noise. The points didn't change; the ruler did."**
- Both: **"Same ten points: {L} M on the left, {R} M on the right. Noise on both. The points didn't change; the ruler did."**
- Neither: **"Same ten points: {L} M on the left, {R} M on the right. A leg on both. The points didn't change; the ruler did."**

Every rep ends on one of these four lines. Each is a decision: the ten points get restated in M before they get used, on both days, every time.

## Answer key

`inside(chart) = (bandPts / M(chart)) < 1.0`, M = the median high-to-low range of the chart's last 20 bars, bandPts = 10. The answer names the side(s) where inside holds: left, right, both, or neither. The four cases come up a quarter each (config). The M ratio between the charts, the regime and mirroring of each chart, and which side is faster in the two-sided cases are drawn independently of the case; the harness checks that none of them predicts it.