Productivity growth per capita (= "economic growth even without population growth") has been happening since the industrial revoluation, and lately it's moved m

Productivity growth per capita (= "economic growth even without population growth") has been happening since the industrial revoluation, and lately it's moved more and more into immaterial / less resource intensive domains. You don't seem to present any arguments as to why it wouldn't happen without population growth. It has been rather self-sustaining. (A different questionis whether we should aim for economic growth - given our biggest problem now is climate change).