Some people will never learn anything, for this reason, because they understand everything too soon.

Quick comprehension can be a handicap. Reaching an answer immediately closes the question before the difficult and interesting material has had a chance to arrive, and the fastest people in a room often carry the shallowest version of a subject. Speed feels like intelligence from inside. Staying puzzled longer is what actually deepens anything.

When you feel the click of having got it, wait a minute and ask what you still could not explain. Try stating the strongest objection to your own view. A willingness to remain uncertain a little longer is worth more than being first to an answer.