If you’re an elected representative, what does an e-mail mean? If it’s from a constituent, individually written, it’s clear enough. But what about if it’s part of a campaign? In the clip above Clay Shirky argues that the predictive value of an e-mail for a member of Congress is zero, and with e-mail campaigns its impossible to rescue the signal from noise. Have we put the barrier to political engagement so low that it can cease to be meaningful? I can’t claim to have the answers, but watch the clip and have a bit of a think. The clip starts at the best bit of the presentation, but the rest is worth watching too.