Lower birthrates are less an issue that people think.
For any living being self replication can explode incredibly fast, and it’s usually the case when numbers dwindle, due more resources available per person.
Big birth numbers are more worrying and limited resources lead to fast “too little resources for everyone” situation.
I remember reading that part of what took Europe our of the dark ages after the black plague was that survivors thrived in an post plague environment. Also remember reading that dutch population growth actually taller because after so many people died survivors got more meat and food in general available to them, so their children grew a lot.
So in general I’m always more worry about high birthrates than low birthrates.
Lower birthrates are less an issue that people think.
For any living being self replication can explode incredibly fast, and it’s usually the case when numbers dwindle, due more resources available per person.
Big birth numbers are more worrying and limited resources lead to fast “too little resources for everyone” situation.
I remember reading that part of what took Europe our of the dark ages after the black plague was that survivors thrived in an post plague environment. Also remember reading that dutch population growth actually taller because after so many people died survivors got more meat and food in general available to them, so their children grew a lot.
So in general I’m always more worry about high birthrates than low birthrates.