These people are more than class presidents and valedictorians. They're more than super nerds. They're the intelligentsia, the intellectual superstars of society.
This adjective for the big-brained elite kind of sounds like the mob — a very, very nerdy mob. It's true, the intelligentsia are the most erudite artists, writers, pundits and thinkers around. They all hang out together to trade brilliant ideas and debate the most heady issues of the day. And because no one else ever has any idea what they're talking about.