Nerds - or - John Gruber just blew my mind.
What makes nerds “nerds” is that they care to an irrational depth about certain specific things.
I’ve always felt like this was the basic idea behind what it is to be a nerd. All the trappings about computers, Magic cards and Dungeons & Dragons (stamps, movies, music etc.) really just comes down to a focus on details. It’s great to find a definition that sums you up in a few words.
The quote is from Daring Fireball, which is really only about Apple and Macintosh but somehow manages to be a great read all the time.
http://indianapolismonthly.com/monthly/article.asp?articleID=3