Definition
Action decomposition is the technique of taking a goal that feels too large to begin and dividing it into a chain of small, specific, immediately doable tasks. The aim is to reduce every objective to a next physical step that requires no further planning to start.
Large goals stall action because they are abstract: they name a destination but not a movement. Decomposition converts the destination into the first footstep, and a footstep is something a person can take today.
Why it matters
How it works
Start from the goal and ask repeatedly: what must happen just before this? Continue until you reach a task that can be done in a single short session with no dependencies. That task becomes the entry point.
The method pairs naturally with an action bias. Decomposition removes the excuse that a goal is too big to begin, and the action bias supplies the willingness to take the small step now. Goal mapping organises the steps into sequence; decomposition makes each one small enough to attempt.