I have some positive news, someone did the math: https://www.sciencedirect.com/science/article/pii/S2452292924000493
Drawing on recent empirical evidence, we show that ending poverty and ensuring decent living standards (DLS) for all, with a full range of necessary goods and services (a standard that approximately 80% of the world population presently does not achieve) can be provisioned for a projected population of 8.5 billion people in 2050 with around 30% of existing productive capacity
Really wonder if his own pictures are included in the training set (as negative examples, of course)