If we visualise a policy (Lilac sticky) during an EventStorming based on 'whenever this Domain Event happens we will do this action/command', always ask the question: Is this what we always do?
Summary of the solution
It is impossible for a person to learn what they think they already know. – Epictetus
We can make many assumptions during an EventStorming at the process or design level. Policies, as Alberto says, are great lie detectors. We can ask a lot of questions about them, and there is almost always more to discover.
