Charlie Munger：The Circle of Competence
Charlie Munger《A Lesson on Elementary, Worldly Wisdom As It Relates To Investment Management & Business》· Circle of competence · Investing · Character · Decision
Every person is going to have a circle of competence. And it's going to be very hard to advance that circle.
Source：
https://web.archive.org/web/20140625062802/http://ycombinator.com/munger.html
Locator：Archived transcript, paragraph 138 (beginning “Again, that is a very, very powerful idea”) · Verified：2026-10-19 · Verification：Exact match
Reading
Everyone has a circle of competence, and expanding it is hard.
Context
Munger argued that everyone has a circle of competence, and that the circle expands only slowly. The task is to identify where you have a genuine edge and to play only within that boundary. Venturing outside is not courage; it is handing the game to someone else's advantage.
Today's question
Where is the boundary of your competence—and what happened the last time you bet outside it?
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