Why the wall exists
A task is too big when its first step is not obvious and its endpoint is far. For an ADHD brain the wall gets its size from working memory: the plan for “the garage” is a list of unsequenced sub-tasks, none of which can be held while doing the others, and the whole thing registers as one impossible blob. Breakdown converts blob → sequence → a first motion small enough to start (executive dysfunction guide has the mechanism).
The tell
You say “I need to do X” and feel the familiar three-tonne weight. Every attempt to “just start the garage” fails because “start the garage” was never a physical action — it was a whole project with no entry point. The difference between a task you avoid and a task you do is rarely importance; it is whether the first step is physical and obvious.
The breakdown method
1. Name the outcome, then the first physical action
“Garage cleared” → “take the three boxes by the door to the car”. The first action is a verb + a visible object + a location, with zero open questions.
2. Cut until resistance is zero
If “take the boxes” still feels heavy, cut again: “carry one box to the car”. The unit that works is the one that does not trigger avoidance — often smaller than feels sensible.
3. Write only the next step
Do not write the full plan and lose the list; write the single next step and put it where you will see it. The brain only needs to hold one stair at a time. The daily planner layer lives on this: a plan that shows only today’s stair.
4. Sequence by dependency, not priority
Order the steps by what unblocks what (“car boxes out first, then shelving”), not by importance ranking — dependency ordering is mechanical and does not need executive judgement.
5. Close each stair
Each step ends with a finished state (boxes in the car, tray in the bin) — a closed micro-loop. Completed steps generate the Zeigarnik relief that keeps the chain going (open loops explain the mechanics).
The tool layer
Task-breakdown apps and AI planners automate the cutting — the honest review of that category is in AI ADHD planners, and the planner-selection guidance is in the planners guide. The skill still lives in you, though: recognise the wall, name the first stair.
FAQ
How small is too small?
There is no too small. The correct size is the step that starts without resistance. Starting a tiny step builds momentum; starting a medium step may not.
Doesn’t breaking tasks down add overhead?
For a neurotypical brain, maybe. For ADHD, the overhead of one wall is paralysis — the breakdown is cheaper than the alternatives (check the paralysis economics).
What if I break it down and still don’t start?
Then the step was still too big, or the freeze is emotional — presence or a body double bypasses both layers (body doubling).