The Core Concept : When you know a domain deeply, it becomes almost impossible to remember what it was like not to know it.

The Core Concept : Experts (engineers, scientists, clinicians) are trained to find the "right" answer in complicated systems.

We have all encountered this specific archetype of leader. They are undeniably brilliant—a savant coder, a world-class surgeon, or a financial mastermind.

A few months ago, a brilliant CISO I work with—let’s call him Marcus—walked into a board meeting right after his team stopped a major ransomware attack.