> The smartest developers/people I know don't have to prove they're the smartest at every step. They have the comfort to say "I don't know" and "You could be right". Most importantly, they have an attitude of "I can probably figure something out that will work". They rarely say something is not possible. They rarely say no outright.

Thank you for this. Most people I've interacted with throughout my life are afraid to say "I don't know", likely out of fear that they will seem stupid or inferior.

When you admit you don't know something, that's when you start learning. It's simply impossible to learn if you think you already know everything.