The moment you believe you have nothing left to learn, you become easy to surprise.

The moment you decide you have learned enough, you stop updating, and the world does not stop moving. Everything after that arrives as a surprise, because your picture is fixed while the thing it describes keeps changing. Confidence like this feels like mastery and functions like blindness.

Ask when you last changed your mind about something in your own field or your own life. If it has been a long while, that is worth sitting with. Then go looking for the most credible view that disagrees with yours and read it properly, not to be persuaded but to stay in the habit of looking.