It would be useful for this conversation to taboo the word "nerd" and stick to "nerd1" for "people with poor social skills" and "nerd2" for "people with a scientific, mathematics, or computing background who are into fantasy fiction, role-playing games and the like". (I was temped to say "dork" and "geek" instead.) And perhaps "normal1" for "people with decent social skills" and "normal2" for "people who are into mainstream hobbies such as football and television" (and "normal3" for "people with IQ within about one sigma of the average", etc.).