In Brave New World, contraceptive implants are mandatory, and there's a huge stigma around /not/ having an abortion. The stigma around childbirth is a little s

In Brave New World, contraceptive implants are mandatory, and there's a huge stigma around /not/ having an abortion. The stigma around childbirth is a little scary to think about. But all things considered, I think that a society would adapt to limit births by some means if we achieved clinical immortality. And there are plenty of means to limit birth without stopping sex. Just asking people to sterilize themselves would probably be sufficient, especially since recombinant cloning actually is at least a reasonable thing to talk about with current technology. (Sterilization doesn't mean you can't ever have kids, just that it's going to cost you a fair amount, and you will have a lot of paperwork to do.) The concept of clinical immortality, in contrast, hasn't really advanced beyond the legend of the "fountain of youth."