What I mean to convey is the hypothetical situation that someone has an intelligence that is one out of two billion individuals, so there are only three others like him, seeing as the estimated population is eight billion. What would the estimated I.Q. be? I would prefer an answer from someone who is knowledgeable about this. Also, what would an I.Q. of one out of one hundred billion look like?. Would my character be unable to relate to other people in the story?