Earlier quoted context omitted.
Sustainable means different things to different people. In a simulator, could you have 12 billion people with their needs met, living fulfilled lives and continuing into the far future? Yes. Is there a political and practical way to reach that state? No. "One study estimates it would take just over 5 Earths to support the human population if everyone’s consumption patterns were similar to the average American." Any U…
Earth receives more solar energy in an hour than human civilization uses in a year. Source: https://en.wikipedia.org/wiki/Solar_energy We're not even vertically farming at scale yet. There's a lot of room left for densifying human civilization. Seems like 10x should be achievable.
Why?
Why isn't 8 billion enough? Is there a plastic ring prize if we hit 80 billion?
Or are you talking about squeezing the 8 billion we have now closer together?