Whose rationale? More efficiency leading to less resource use never happened, it always leads to more resource use (jevons paradox).
AI companies currently simply are a major contributor to climate crisis, justified by racing for future riches for a few people, provided by some imaginary moat. Probably right near the one built by Uber.
It does, but this due to the demand created by humans. If you create a technologically advanced civilization, with robots doing a lot of the work, and considering their lack of desire to own things like pretty houses, it could be possible to scale down civilization to a few select millions in such a way that the entire system is then respecting earth's resources.
If you were to ship a big group of people through the galaxy, you'd also have to put some constraints on how many people will be on that ship, yet it will have to function regardless of how little people exist on that ship. The same could be applied to earth.
This would also give animals more room on this planet.
No vision here, but it looks like developed countries are already working on it by themselves, with the demographic change we're able to observe. If that were the way, strong borders would need to be built.
AI companies currently simply are a major contributor to climate crisis, justified by racing for future riches for a few people, provided by some imaginary moat. Probably right near the one built by Uber.