Learn in the textbookIdea Generation Techniques
DefinitionBrainstorming (ブレーンストーミング) is an idea-generation method in which several people say whatever comes to mind, without criticism, so the ideas keep multiplying.
ExplanationThis stage of spreading ideas out is called divergence (発散). Putting off evaluation and selection makes people less hesitant to speak, so the ideas can range from candidate product names to event plans.
AnalogyThink of opening a tap all the way and letting it run. If someone starts closing the valve midway, the flow thins out.
Memory hookA storm tears through and leaves a mess, so picture one blowing through your head: the tidying up comes afterward.