Couldn't it be said that "smarts" is relative? Said Nuclear physicist may not be smart enough to learn how to diet correctly, nor have the drive to do so, or pick up the bangin chick at the club (I gather talking about his field will not work, but talking about Milan will)
I remember watching astrophyisicist Neil DeGrasse Tyson on Jay Leno, I thought he was going to be "cool" and present his field in a cool way, but he was the nerdiest black man this side of Urkel. Many "smart" or extremely intelligent people do not know how to finesse the "coolness", either because they are so focused on their field, that they foster a combo of lack of social skills and passive aggressiveness. Or that they have no clue...usually this is a result of the former.