Why do our group's best ideas disappear before anyone writes them down?

Someone says, "wait, what was that thing we talked about last Tuesday," and the room goes quiet in a particular way. Not embarrassed, exactly. Something closer to grief — a small, real loss, already half-forgotten. Look closely at what happened. No one was careless. Someone meant to write it down. Someone else assumed someone else already had. A third person wrote it in a notebook that stays on their desk, in a language only they will ever read again. The idea did not fail to occur to anyone. It occurred, and then it had nowhere to go. This is not a defect of imagination. Groups that think well together lose ideas at exactly the same rate as groups that think poorly, if neither has built a place for the idea to rest. The work, then, is not to think harder. It is to build the vessel before the thought arrives.