Technological advances also fueled the sexual revolution. Pornographers, for example, have taken advantage of every new technology from the printing press to the latest digital advances. Of course, the most essential technological achievement for the new sexual morality was the arrival of contraceptives and antibiotics. Put bluntly, so long as sex between a man and a woman implied the likelihood of pregnancy, there was a certain check on extramarital sexual activity. Once the birth-control pill arrived, with all of its promises of reproductive control, a biological check on sexual immorality that had shaped human existence from Adam and Eve forward was almost instantly removed. The sexual revolution could not have taken place without the arrival of effective, cheap, and widely available contraceptives.