Given that seven of the top twenty most-visited sites on the Web are porn sites, and that nearly 33 percent of all Internet searches are for terms related to sex, it’s safe to say that we’re sinking a ton of time and money into digital voyeurism. Unlike analog sex, viewing porn has no evolutionary payoff. So why do so many do it so often? Because, for a brief moment (and it really is brief—an average PornHub visit clocks in at seven and half minutes), we lose ourselves in a state of physiological arousal and neurochemical saturation. Put
