The sale of sex in modern societies is not about spreading genes. Sex has been taken over by the memes.

For the planet's sake, I hope we have bird flu or some other thing that will reduce the population, because otherwise we're doomed.

Finally, we might decide that civilisation itself is worth preserving. In that case we have to work out what to save and which people would be needed in a drastically reduced population - weighing the value of scientists and musicians against that of politicians, for example...

Just as the design of our bodies can be understood only in terms of natural selection, so the design of our minds can be understood only in terms of memetic selection.

I have not come up with anything original. It needs a better brain than mine! I have done what I can do in taking Dawkins' idea and extending it.

Free will and consciousness is an illusion, and the self is a complex of memes.

All other species on this planet are gene machines only. They don't imitate at all well; we alone are gene machines and meme machines as well.