If I ever heard "population collapse" as a kid, it would have been in relation to endangered species of animals. The phrase one did hear - and fairly often - w

If I ever heard "population collapse" as a kid, it would have been in relation to endangered species of animals. The phrase one did hear - and fairly often - was "population explosion". In fact, "population collapse" is a less intuitive concept. Egg heads, 40 years ago, worried about the "population explosion"; people reproduce, and there is only so much space and so much food to go around. Incidentally, the first I heard anyone attribute "population collapse" to a "trend towards individualism" was, I think, last year.