A friend hypothesized coming up with a 'reverse doomsday clock', which would count down to the estimated time when virtual sex would that much more satisfying than real sex that the species would stop reproducing. It's ticking down.
Being less pejorative. Imagine that that scenario comes about. It would not mean an end to reproduction. People reproduce out of the desire to reproduce, not the desire to have sex.
The idea strikes me as something only someone never having had a sexual relationship with someone they love could ever come up with, as I dare say the emotional connection between two persons having sex vastly outmatches any physical expertise when it comes to the satisfaction one gets from the act. 'Virtual sex' could never replace that, at best it could perhaps eradicate the need for prostitution.
Also it's not as if people having kids is just a by-product of having great sex ending in a contraception malfunction. People in general want kids, even turning to artificial insemination or adoption should they need to.
Why would this change in the extremely hypothetical situation of virtual sex being more satisying than real sex?
As silly as the parent posts' hypothesis is, this is actually an interesting speculation. You don't need to go too sci-fi to imagine a point where the quality and ease of video chat outweighs the risks of a lot of riskier sexual behaviors. Heh, as distasteful as ChatRoulette could be, I wonder if it's a portent of an actual positive change.