The usual complaint is that the pyramid scheme stops working (not enough people working to pay the pensions of the old people). This is simplistic: the real problem is that there aren't enough doctors/garbos/crop-harvesters etc as a proportion of the population. Either way the fix is straightforward: bring in some people who'd like a job.
Some rethinking is required -- in the USA Social Security was put in place when the typical recipient was expected to receive a payout for...less than three years.
I have friends in the "reduce the birth rate" community, and they are at least as thoughless if not more than the "birth rate too low" crowd. In the former case their "diagnosis" is inevitably that the wrong people are having too many kids though they hate it when you point that out.
A higher birth rate in sub saharan africa is hardly a crisis: every person in the US emits 5X the CO2 of a person in Africa. Dropping population in the rich, polluting countries can be a step in the right direction.
(Personally I'm pretty indifferent to either position. As Herb Stein famously put it: "if something cannot go on forever it will stop". Sure, the latency in this case is quite high but people deal with worse all the time.)
Some rethinking is required -- in the USA Social Security was put in place when the typical recipient was expected to receive a payout for...less than three years.
I have friends in the "reduce the birth rate" community, and they are at least as thoughless if not more than the "birth rate too low" crowd. In the former case their "diagnosis" is inevitably that the wrong people are having too many kids though they hate it when you point that out.
A higher birth rate in sub saharan africa is hardly a crisis: every person in the US emits 5X the CO2 of a person in Africa. Dropping population in the rich, polluting countries can be a step in the right direction.
(Personally I'm pretty indifferent to either position. As Herb Stein famously put it: "if something cannot go on forever it will stop". Sure, the latency in this case is quite high but people deal with worse all the time.)