I always think of nerds as the fasion clueless (they are always candidates for the DON'T picture) Not higher in intellectual capacity.
Bill Clinton and Barack Obama are both brilliant, but I wouldn't call either one a nerd.
On the other hand, Bill Gates...he would go for days without showering. But then the same rumor held for Brad Pitt.
So what exactly is the definition of a nerd.
(See what you write about when you get up at 4 am to talk to the UK and then don't know what to do with yourself until DD wakes up? Though sit ups would be a good idea.)
Ren