The first answer is the obvious one. Push for a second and a third. That’s where you begin.

The first idea is whatever was already sitting at the front of your mind, which means it is also the one everyone else reaches first. It is not wrong, just used. The interesting material sits underneath, and the only way there is refusing the obvious version and continuing after your brain announces the job is finished.

Set a rule for your next brainstorm that nothing gets picked until you have three. Write the obvious one down immediately so it stops taking up room. The third one is usually where the actual work begins.