Replacement-level total fertility rate is actually generally accepted to be a little bit above 2 (around 2.3), due to unnatural deaths and other causes. At leas

Replacement-level total fertility rate is actually generally accepted to be a little bit above 2 (around 2.3), due to unnatural deaths and other causes. At least in Geography. With only two kids per couple, even if every woman had 2 children (which is what a 2.0TFR would mean), the population would still decline.