Urgency and importance give you two dimensions. The third is leverage: whether doing this task permanently simplifies or unblocks something else. A task can be neither urgent nor immediately important but still high leverage. Fixing a broken process that generates overhead every week, writing documentation that stops three recurring questions: these compound over time. [[Do less]] keeps asking this question before anything gets added to the calendar.
[[LNO Framework]] makes the overhead category explicit at the task level, which is where this third dimension becomes actionable. A task that fails both the importance test and the leverage test is a strong candidate for deletion rather than scheduling. [[Building a boring task list]] built around leverage compounds in a way that an urgency-only list never does, because the urgent things are usually someone else’s emergency.