Opening scene
Ten components don't fit into twenty minutes.
What happens if we try? Each component gets two minutes.
And the main skill gets two minutes too.
A two-minute main skill doesn't do anything. One hold, maybe two. Not enough to produce an adaptation.
So when you're building a twenty-minute sequence, the constraint isn't time.
The constraint is this: the main skill's minimum dose.
And this determines where you build the template from. Not top-down; backward from the main skill.
Today we're building that method, and by the end you'll have a filled-in twenty minutes in hand.
What this lesson covers
First we'll establish the design rule: the template is written backward from the main skill. Then we'll define the minimum dose and you'll see why it's so decisive. After that we'll divide up the twenty minutes, and I'll tell you what gets cut and why. Then we'll build two versions: a training day and a measurement day. After that I'll fill the template with this course's own content; you'll see a real twenty minutes. At the very end we'll set down the single constraint that runs the template. We'll work through sixteen examples. By the end of the lesson, you'll be able to write your own twenty minutes.
Starting point
It's close to the slot concept from Y1.45, but not the same. A slot was a place; a template is the plan of those places together with their durations.
I need to separate this from the minimum version in Y1.03. There, the minimum version was the smallest acceptable practice for a bad day; it was a tool for continuity. The minimum dose, on the other hand, is a threshold: once you drop below it, the work doesn't produce an adaptation.
The two do different jobs. The minimum version protects the habit; the minimum dose builds capacity.
Mechanism
Writing backward
Writing a template top-down feels natural: warm-up, main skill, cool-down. But when time is limited, this order gives the wrong result.
The reason is this: when you write top-down, you treat the warm-up generously, and the main skill gets whatever is left over.
The right direction is the reverse.
First step: how much is the main skill's minimum dose?
Second step: divide the remaining time among the required components.
Third step: if there's still time, add the optional components.
Fourth step: if not, cut the optional components.
This order is where the required/optional distinction from Y1.62 gets used. The distinction was established there; here it does its job.
How much is the minimum dose
Let me give you a rough threshold for capacity work.
If you want two or three sets in a slot with a wait in between, you need six to eight minutes.
What happens under five minutes? One set and a warm-up. One set doesn't produce an adaptation.
The last sentence matters. Six to eight minutes is a starting value, not a rule. Your own log corrects this number over time.
But when you're building a twenty-minute template, you need a number, and that number will be nine. You'll see why shortly.
The twenty minutes, divided
Now the template. The training-day version.
Daily check-in: before you start the practice, twenty seconds. Not a time block, a decision. It doesn't take up space inside the template.
Preparation: five minutes. General warm-up and specific preparation combined; in Y1.62 I said that in short sessions, one can fold into the other. Action rehearsal is also inside these five minutes, if the main skill calls for it.
Main skill: nine minutes. One slot. Two or three rounds with a wait in between.
Transitions: two minutes. Not a block; spread out between the components. In Y1.61 we saw that transitions could become a section; in twenty minutes they don't become a block, but they're still counted.
Cool-down: three minutes. Bringing the load down and closing.
Total: nineteen minutes. One minute of slack.
The log: after the practice, one minute.
And now, what gets cut.
The opening observation is cut. On a training day, you don't take a measurement.
Secondary work is cut. There's no time.
Both are optional components. So the rule was applied; what got cut weren't the required ones.
Two versions
The above is the training-day version. There's also a measurement-day version.
On a measurement day, the division looks like this.
Preparation: five minutes. Same.
Opening observation: two minutes. This time it's there.
Measurement: eight minutes. And note: here, measurement doesn't replace the main skill; the main skill itself is the measurement. The third form from Y1.64.
Cool-down: three minutes.
Transitions: two minutes, spread out.
Total: twenty minutes.
So the difference between the two versions isn't adding a component; it's changing the main skill's form.
How often do you do a measurement day? From Y1.36: every six to eight weeks. So one measurement day in twelve sessions, and eleven training days.
Twenty minutes, filled in
Now a concrete example. Main skill: a plank step, in capacity form.
Before starting the practice, the daily check-in and the load ceiling. Twenty seconds.
The first five minutes are preparation. The wrist sequence from Y1.39: five items, two and a half minutes. Then the three exercises from Y1.41: ten scapular slides, five one-hand controls, ten weight transfers. These five minutes cover three components at once: general warm-up, specific preparation, and action rehearsal.
The next nine minutes are the main skill. Plank, at your own step. Three holds, each to the leak point; a one-minute wait in between. Then, in the remaining time, weight transfer; ten times, two rounds.
Transitions are inside these nine minutes: setup before each hold and a controlled exit after.
The last three minutes are the cool-down. From Y1.45: the back of the hand on the floor for twenty seconds, four cycles of the extended exhale, and a shoulder-range check as the closing item.
After the practice, the log: load ceiling, step, leak-free duration, which check broke down.
Twenty minutes. One main skill, six required components, two optional components cut.
The constraint that runs the template
There's a single constraint, and the whole template rests on it.
A twenty-minute sequence serves a single main skill.
When you put in two main skills, each one gets four and a half minutes, and both end up below the minimum dose. The one-main-skill rule from Y1.64 comes back here as a time constraint.
And an honesty note: if you can't protect the nine minutes, that practice isn't a twenty-minute sequence. It's a shorter practice with a smaller purpose; that's not a problem, but it has a different name. The minimum version from Y1.03 is exactly that.
Reading the examples
Master layer
Now let's refine this a little.
First: the number nine isn't a calculation, it's a choice. If six to eight minutes is the minimum-dose range, nine minutes leaves a margin above that range, so that setup and waiting time don't steal from the dose. Based on your own log, it's also possible to bring this down to eight and raise preparation to six. The template's numbers are negotiable; its order and its reasoning aren't.
Second: counting transitions in spread-out form instead of as a block can look like an accounting trick. It isn't. In Y1.61 transitions became a section because there was a floor transition and a release transition there; the two were separate steps. In a twenty-minute arm-support practice, there's no such transition. So whether a transition becomes a block depends on the practice's content.
Third: cutting the two optional components is a loss, and I'm not hiding that. In a session without an opening observation, you don't know that day's starting state; in a session without secondary work, some region never gets worked at all. The twenty minutes accepts this loss. The thirty- and forty-five-minute templates exist for exactly the purpose of winning back these two losses.
Fourth, and subtlest: this lesson gives you a template, but it's really talking about the template's method more than its numbers. Here's why: the three templates I've given you cover three situations, and when you run into a fourth situation, you need to have the method in hand. What will you do when you have ten minutes? You'll write backward: how much is the main skill's minimum dose, how will I divide up what's left, which optional components will I cut? The answer might turn out to be: a main skill can't be worked in ten minutes, so this is a minimum version. And that's a correct answer too.
Common mistakes and misconceptions
Common mistakeFirst mistake: a template is written top-down.
When time is limited, this order treats preparation generously and leaves the main skill whatever time is left over. A template is written backward from the main skill's minimum dose.
Common mistakeSecond mistake: ten components can be fit into twenty minutes.
Each component gets two minutes, and the main skill stays markedly below the minimum dose. Two optional components get cut: the opening observation and secondary work.
Common mistakeThird mistake: two main skills can be worked in twenty minutes.
Each one is left four and a half minutes, and both end up below the minimum dose; they won't produce an adaptation even if repeated for weeks. A twenty-minute sequence serves a single main skill.
Common mistakeFourth mistake: if the time set aside for the main skill isn't enough, you cut it from preparation.
Preparation is a required component too, and cutting it loads the main skill without preparation. If time isn't enough, the practice is named a shorter practice; a required component doesn't get cut.
Practice
Keep in mind
A template is written backward from the main skill's minimum dose; a plan written top-down leaves the main skill whatever time is left over.
The minimum dose is the smallest amount of work a main skill needs to produce an adaptation, and it's different from the minimum version in Y1.03.
In twenty minutes, two optional components get cut: the opening observation and secondary work; none of the six required components get cut.
The division is this: preparation five, main skill nine, transitions two spread out, cool-down three; the log one minute after the practice.
A twenty-minute sequence serves a single main skill; if the nine minutes can't be protected, that practice is a minimum version.
Bridge to the next lesson
In twenty minutes, you lost two components.
The opening observation and secondary work.
In thirty minutes we win them back, and that's the answer to the question of where the extra ten minutes go.
But the next lesson has a more interesting decision in it. When ten minutes get added, the easiest thing would be to raise the main skill to nineteen minutes.
And that would be wrong. Seeing why means understanding the difference between dose and volume.