massaman_man t1_je2g9f2 wrote

Personally, I don't think the world will even get to 10 billion, or even 9 billion. The major population models don't account for things like climate change, better education, better economics, and things like that. The world is developing so fast that unless we actively prevent all developing countries from improving quality of life through draconian foreign policies, then we are not likely to see that many people