And now for something completely different...

[kandrathe]

I'm thinking forward from the beginning, wondering how exactly you're supposed to work with such protean tools as rumors and songs, absent a media culture.

Media would be involved in my plan. And, I wouldn't limit the "propaganda" to rumors or songs. A well designed propaganda campaign targets all levels of society, with a consistently themed message. You could recruit and hire some very popular public figures to be a spokesperson for the cause, you can do billboards, and public service ads, etc. Tie it to the Green movement, take it to Africa and Asia with the peace corps. Introduce a population plan through the UN or the WHO, get some treaty going and get every nation to sign on to attempting to reach population growth goals. It needs a long term psychological strategy, and not a short term ad campaign. When I joked about Obama, I was semi-serious. Was he the "Change" that everybody was looking for? Or, was it a very masterfully crafted propaganda campaign where everyone believed that *he* would do exactly what you thought needed to be done. I think the later.