Did you even know there was such a thing as the Voluntary Human Extinction Movement? The idea is, you join the movement through a firm commitment to avoid reproducing yourself. Which, if you think about it, is no way to build a sustainable constituency. See kids, by taking yourselves out of the gene pool, you're actually giving the species a stronger than ever tendency toward procreation. The name's Mendel, baby. Gregor Mendel. Still, they do get a thumbs-up from me for pissing off the Catholics. Not that it matters much. Terms like "voluntary" simply do not apply to the inevitable.