Earned Dogmatism Effect

Here is a finding that should worry every expert: success in a field licenses closed-mindedness in it. Having earned the right to opinions, people stop earning them.

The logic is subtle. The novice knows she does not know, so she listens. The expert, crowned by past accuracy, feels listening is no longer required — the doctorate becomes a shield against new information. Knowledge, achieved, becomes a reason to stop knowing.

You have met the pattern: the veteran manager who has not changed his mind since his last success, the celebrated doctor who stopped reading, the teacher whose methods are older than her students' parents.

The antidote is a standing suspicion of your own certainty — not false modesty, but bookkeeping. Past accuracy buys authority; it does not buy infallibility. The moment expertise becomes a reason to stop listening, it has stopped growing. And what stops growing starts rotting.