The Circle of Competence: The Invisible Edge

How knowing what you know and what you don’t, can become your most powerful career lever.

In 1999, Warren Buffett told investors, “Know your circle of competence, and stay within it. The size of that circle is not very important; knowing its boundaries, however, is vital.”

That advice has guided some of the world’s best decision-makers, from investors to founders to engineers. But in tech, where we’re constantly told to “take risks,” “fail fa…