You Know More Than You Think You Do — And Someone Needs to Hear It

Here is something almost universally true of people in their 50s, 60s, and 70s who have spent decades doing significant work of any kind: they systematically underestimate the value of what they know. Not out of false modesty. Out of a specific, well-documented cognitive pattern that becomes stronger with expertise. The more thoroughly you understand something, the harder it is to remember what it felt like not to understand it. The insight that took you fifteen years to arrive at feels, from the inside of having arrived, like common sense. The knowledge of how an organisation actually works — beneath its stated values, beneath its official processes, beneath the version it presents to new employees — feels, to the person who has spent twenty years acquiring it, like obvious background. It is not obvious. It is not common sense. It is the accumulated product of two decades of careful attention, of costly mistakes made and learned from, of gradually developing a quality of understanding that cannot be shortcut and cannot be found in any training document. And it is about to leave the building without anyone having written it down.

The Curse of the Obvious

The cognitive barrier has a name: the Curse of Knowledge, sometimes called the Curse of the Obvious. Research on how experts communicate has found consistent evidence that one of the primary obstacles to expert knowledge transfer is the expert's inability to remember what it was like not to know what they know. When Brenda, the community health nurse, was asked by a newly qualified colleague why a particular family's presentation was not what it appeared to be, Brenda spent forty-five minutes explaining something she had understood for years without ever having named. The newly qualified nurse said: "Where is this written down?" The answer was: nowhere. It was in Brenda. It had always been in Brenda. And in forty-five minutes, a significant piece of it had moved. That is what the Curse of the Obvious costs: forty-five minutes' worth of knowledge, accumulated over thirty years, that nearly left without a trace.

The two-way current

What most people don't know about knowledge transfer is that it flows both ways. The receiver gets the knowledge, the permission that comes from knowing someone has already navigated this territory, and the specific experience of being genuinely seen and witnessed in their development. The person who shares gets something equally valuable: the clarification of their own understanding that only comes from articulating it explicitly to someone who needs it. You discover what you actually know when you try to explain it. You discover the limits of your knowledge when the explanation fails. The transmission sharpens the transmitted. CAIRN: How to Pass On What You Know Before It's Too Late is part of The Long Middle series, addressing the specific psychology of knowledge transfer in the second half of life and the practical tools for stacking the stones.