The faster your knowledge expires, the more dangerous it is to build identity on expertise.
The distinction is simple: the knowledge layer explains the world; the myth layer explains you. Knowledge makes bets reality can falsify. Myth carries stories about how to be, not what is true. The Cincinnatus story still works every time someone serves and returns to the plow.
When knowledge was durable, organizations could mostly ignore this. People anchored to what they knew because what they knew lasted. Now tools, roles, and assumptions can go stale in months. If identity sits on the knowledge layer, every update feels like a status loss.
That is why myth is not narrative decoration. It is infrastructure. In a high-change environment, an organization needs a stable myth layer under the knowledge layer, or it will start defending obsolete knowledge just to preserve itself.