He states that:
Biological sex is the penultimate act by which a gene may hope to achieve replication in another body. The genes of the mother and father combine somewhat randomly creating a unique set of genes for the child. This is basic biology.
Right - with you so far... But then he asks...
But how exactly to memes replicate? "Imitation" is often suggested, as in the Wikipedia article. But imitation presupposes something more fundamental: attention. You can't imitate what you haven't paid attention to. Attention is meme sex.
The best part, however, is when he goes on to compare advertising to a kind of sexual assault of our attention.
Read the full article - Attention is Meme Sex. Great metaphor!
I'm suddenly feeling a little randy.