Let the population contract to <<1b as it was for thousands of years of civilization before industrial agriculture caused a very recent explosion in population the past 2 centuries (predominantly the 20th century)
That’s…not a thing
Like literally absurd to even consider as a physical possibility.
How exactly is the population supposed to contract?
Education? Contraception? It’s not fucking rocket science. Every developed country in the world is at well below replacement rates. The idea needs to be promoted and not derided or conflated with eugenics (which it emphatically isn’t). Blunting the impact of an aging population is the most difficult problem.
Edit: the most difficult problem is that capitalism demands perpetual growth, and billionaires and heads of state with a vested interest in growth would never allow the population to shrink without extreme resistance, like pervasive propaganda and outlawing abortion.
Under 1 billion is unrealistic but some contraction will happen. The main factor dictating how many children people will have is infant mortality of the previous one or two generations as well as the existence of pension systems.
…which is the reason why developed countries have birth rates below replacement level and with increased wealth elsewhere it’s also going to happen there, which would mean contraction everywhere. I don’t expect that to keep up forever, however, states will get their shit together and set incentive structures (in particular making having kids affordable) long before we’re contracting to one billion.
Developing countries are not anywhere close to that happening. Their populations are still booming.
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