It seems like the equilibrium would push very hard for a very high population density where most people’s parents wanted lots of children.
I’m not sure why this is the case?
The average lifetime number of children would have to be exactly replacement at equilibrium, and if people are generally long-lived, this would imply an extremely low number of children per year. This seems implausible since if even a small number of people were willing/able to sustain a high fertility rate, most other people would have to have no children to keep the average low, and the few high-achievers would be the parents of most of the population.
The average lifetime number of children would have to be exactly replacement at equilibrium, and if people are generally long-lived, this would imply an extremely low number of children per year. This seems implausible since if even a small number of people were willing/able to sustain a high fertility rate, most other people would have to have no children to keep the average low, and the few high-achievers would be the parents of most of the population.
That sounds reasonable, yes.