What does it mean that the five whys technique?

Asking why five times in succession usually reaches the root cause of a problem.

Example: Your weekly planning session keeps running over ninety minutes, leaving you frustrated and behind schedule. You could shorten the agenda or set a harder stop time — both are symptom fixes. Instead, you ask why. Why does the session run long? Because you spend too much time on task prioritization. Why? Because you arrive at the session without a pre-ranked list. Why? Because you never review your backlog before the session. Why? Because you treat the planning session as the place where prioritization happens, rather than where prioritized decisions get confirmed. Why? Because you never separated the act of evaluating tasks from the act of scheduling them. The root cause is a missing upstream step — a five-minute backlog review the night before — not a time management problem at all.

Try this: Choose one recurring problem you have encountered at least three times in the past month — a meeting that always derails, a task you consistently procrastinate on, a tool that keeps breaking. Write the problem as a single factual sentence. Then ask 'Why does this happen?' and write the answer. Ask 'Why?' of that answer. Repeat until you have five layers. For each layer, write whether it describes a symptom, a contributing factor, or a structural cause. If your fifth answer still feels like a symptom, keep going. The exercise is complete when you reach something you can change that would prevent the problem from recurring. Time limit: twenty minutes.