Earlier quoted context omitted.
>The ageing and shrinking population is a temporary, one-off problem. There's no fundamental reason why a replacement or below-replacement birth rate is a problem - in many ways it's advantageous - but it's a really big problem over the next few decades because we didn't plan for it. Taking a perhaps unwarranted broad view, economies of scale allow for us to achieve certain productive activities that we would otherwi…
UN forecasts suggest that the global population will plateau at between 9 and 11 billion by 2100 to 2150, followed by stasis or a very gradual decline. IMO, those are excellent numbers - more than large enough to launch an interplanetary civilisation, but manageable within the resource constraints of Earth. I'd be worried if the population was forecast to shrink below a billion, but that's highly unlikely on any reas…
There will be no stabilisation of population.