The obvious solution is sometimes only obvious because nobody stayed with the problem longer.

The obvious answer is often just the first answer, made obvious by everyone leaving early. Problems open up in layers, and the layer most people reach is the one available after ten minutes of thought. Staying past that is uncomfortable and rarely rewarded in the moment.

When you land on a solution quickly, try spending another half hour before committing. Ask what would have to be true for the obvious answer to be wrong. The second thing you find is not always better, but you will not know without looking.