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by tashbarg 1538 days ago
> 7B people now, another 20B in our children's lifetime.

The UN projects ~11B total by 2100 [1]. Most of the growth currently is and will be because of people surviving birth and living long. Global fertility rate is already down to 2.4 (from almost 5 in the 50s) and very likely will keep going down. That's why projections even see a decline of total population after 2100 as likely.

[1] https://population.un.org/wpp/Graphs/Probabilistic/POP/TOT/9...