I'm not claiming everyone uses the terms this way but for your consideration: Geeks - Obsessed over fictional world(s). Nerds - Obsessed over the real world (o

I'm not claiming everyone uses the terms this way but for your consideration: Geeks - Obsessed over fictional world(s). Nerds - Obsessed over the real world (or a specific part of it). Comics Geek Math Nerd There's a decent amount of overlap though.