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lanfeust6
on Jan 22, 2023
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Japan was the future but it's stuck in the past
Given a constant fertility rate over time any inverted pyramid would eventually straighten out.
hortense
on Jan 22, 2023
[–]
If you take a constant fertility rate of 1, you'll always have an inverted pyramid, until there's no more pyramid.
(I'm assuming that the life expectancy does not change significantly)
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