Is the Left the Nerd Side of Politics?

Where did the idea that the left is the nerd side of politics come from? Which side of the political spectrum got its prejudices from people who floated through college in a semi-conscious haze and made up for that by getting their ideas from people who were just as stoned? Which side of the political spectrum is opposed to the energy source discovered and maintained by nerds (i.e., nukes)?

On the other hand, there are leftists willing to give credit (although they think it's blame) to right-wing nerds.