But that's a game everybody rigs to their own advantage: ignorance is defined as not knowing something that I know. You always win, everybody else always loses. That person who doesn't know what Lisp is, might be an expert on finite state machines and maybe you don't know anything about that. Or maybe they're just junior: someone with great potential to grow but without the benefit of experience. Surely there's better ways of detecting who's an idiot and who isn't than a jargon competition.

Also see http://youarenotsosmart.com/2011/08/21/the-illusion-of-asymm...