To a large extent immigration (along with internal migration) and the pressure it puts on real estate costs have been responsible for the drop in birth rates. I

To a large extent immigration (along with internal migration) and the pressure it puts on real estate costs have been responsible for the drop in birth rates. I know plenty of people that would have had kids if they'd had the financial stability and didn't require both parent working full time. But the current generation id far poorer than their parents where it counts. > When the whole world stops reproducing we may need a plan B, but that's not a problem right now. Regardless of reproduction rates this will happen sooner than you think. As India and China become more developed emigrating becomes less and less desirable as the gap between risk and reward shrinks. After that there is no pool of immigrants with a similar size, sub-saharan Africa will likely become one but the educational standard of that population will likely rise in a much more staggered fashion, it will never match the numbers we saw from India and China.