The programming: Indulge your hedonistic desires to your heart’s content. It’s normal, healthy and free.
Except… It’s not normal. The monkey brain wasn’t made for the world of on-demand, high-def, infinite-variety porn that can be delivered straight into the eye sockets of anybody with a working internet connection.
Porn, like compulsive gambling and spree shopping, is an extreme example of the brain’s reward system being highjacked by an exaggerated version of a naturally healthy stimulus. Just as the gambler needs to keep pulling that lever to get their dopamine fix, so do porn addicts learn to blunt themselves into docile submissiveness with their habit.