> half a century or a century out Based on the animation above, a half century out, 2070; the demographic disparity is significantly less pronounced in Japan.

> half a century or a century out Based on the animation above, a half century out, 2070; the demographic disparity is significantly less pronounced in Japan. From a US perspective going from 3.62 avg children to replacement rate (2) is much more severe than going from 2 to 1.73. *Though, this data does put an interesting perspective on european immigration and the great depression from 1910-1930. From replacement rates, 4.24 (1880) to 2.22 (1940) https://populationeducation.org/wp-content/uploads/2020/04/average-number-children-per-us-family-historic-infographic.pdf https://populationeducation.org/wp-content/uploads/2020/04/a...