Don't agree. Being truly engaging to, say, a child, requires an applied kind of intelligence. Having more of this intelligence would not hamper one's degree of engagement with the child.<p>Similarly, take Feynman; probably smarter than most of us. Note how he analysed and described many everyday phenomena in ways that seem very interesting, and not at all out of intellectual reach, and didn't seem to be bored doing so.<p>In fact, I'd rather say that an excess of intelligence should be no limit to how fascinating one is to the listener. The most interesting conversations often involve talking about the other person and sharing life experiences; but the most visceral of those experiences don't seem to have any obvious connection to intelligence. If anything, intelligence will enhance one's descriptive abilities.