This! There is no substitute for knowledge. Just look at Brendan Eich, if you listen to some of his interviews he exhibits few of those attributes the OP poste

This! There is no substitute for knowledge. Just look at Brendan Eich, if you listen to some of his interviews he exhibits few of those attributes the OP poster listed. But after listening to Brendan no one would doubt he is a lot smarter than you or me (at least on technical matters).