Ninety-Nine Percent in Your Head

A team writes down almost nothing of what it knows. The reports, the documents, that wiki no one updates. That is one percent. The rest, the ninety-nine, sits in heads. Instincts, half-memories, the feeling that something is wrong before anyone can say why. "Ask her, she was there." That is where the knowledge actually lives and it is the part you never see.

One percent shows, the rest does not

Knowledge in a head is invisible to everyone else. You cannot search it. No one can build on it, because no one knows it is there until they happen to ask the right person about the right thing. A team can be sitting on the answer to its own question and still search for a week, because the answer was in a head that was busy with something else.

And it fades. That project you knew by heart a year ago is a rough impression today. The details that were obvious then are gone now. Not because they were unimportant, but because a head is a poor place to store something for long.

And then it goes home

The worst part is not that the knowledge is invisible or that it fades. It is that it has legs. It goes home at five, it is off in July and one day it resigns. When a person with twenty years of experience leaves a team, an empty chair is not what they leave. They leave ninety-nine percent of everything that person knew, and almost none of it lived anywhere but in their head.

That is not a staffing problem. It is a knowledge problem that happens to look like a staffing problem.

Getting it out

We treat capturing knowledge as overhead. Something you do later, when there is time, which is never. So it stays where it is. But the moment it is out of the head and in a place the team can reach, it stops being one person's fading memory. It becomes something you own together.

It does not have to be hard. Often it is enough to just say it. Talk through the meeting, the reasoning, why the decision came out the way it did. And let a system capture it and connect it where it belongs. What I say in two minutes is more context than I have the patience to write in twenty. That is why I built deep-thought around exactly that. Not to replace the head, but to stop relying on it as the only place to store something a whole team needs.

One percent is not the problem

What you wrote down is rarely the problem. What you never wrote down is. Ninety-nine percent of what your team knows lives only in heads, and heads go home in the evening and eventually resign.

Knowledge that lives in only one place is knowledge you are already losing. The only question is how much and how fast.

See also: The Rest Goes Stale (series 42) and What if we'd recorded this? (series 36).