In communication, length is power dynamic.
When you answer someone’s question with excessive detail, you naturally drop into a defensive posture—even if you hold the stronger position. Over-explaining signals that you are seeking validation or trying to prove yourself.
Conversely, a concise answer instantly places you in a position of authority—even if you start from a weaker position. Brevity projects confidence, signals frame control, and forces the other party to do the cognitive heavy lifting.
Detail invites debate; brevity commands respect.