We all like to think we are the best at something, well, to be better than you at something would make a person trying Stupid, would it not?
Do we though??...I think I'm OK at a few things. But I don't think I'm the best..or anywhere near it..at anything. Don't personally know anybody else who does either. As for "stupid"..I always try to be very careful how I use that word.
I wish I was really good at something but I am not, I am the archetypal "jack of all trades, master of none".
I have an interest in many things, actually too many things, but even things I do know a bit more about than your average being (typically electrics, electronics, power generation) I am still nowhere near an expert on any of them.