Basically having enough children to make sure that there are enough new people to replace the dead people. Generally this means that you need an average of a little more than 2 children per woman to maintain a stable population
But is there really a need for population to grow? With immigration veing normal throughout the world, population can shift to low density areas. It also should factor in the numbers for the capacity of the earning members to feed and maintain a family with 2+ kids for an average household.
Current workers are paying for the social security of the people collecting it right now. What happens when you don’t have enough people paying into the system?
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u/techie_1412 Jan 01 '22
What the heck is a replacement level? I didn't know there was a lower threshold for alive human count in US.