As long as productivity grows faster than population, there's effectively no end to how much population can grow. You might argue that productivity gains will stop at some point, but then you need to provide arguments for that, not take as a given that there is a limit.
People's preferences for family size in a developed world seems to be providing a much more tangible limit to population growth than resources. People simply don't want to have as many children as it takes to substantially grow population when they're rich enough.
> You might argue that productivity gains will stop at some point, but then you need to provide arguments for that, not take as a given that there is a limit.
I have one. Productivity gains are mostly granted by energy (AKA bigger machines). W/capita is imo a better approximation to a nation wealth than GPD/capita in socialist countries, but even in the us you can see the strong correlation.
80% of this energy come from fossil fuel, coal and gaz make 60% of world electricity (probably more), and oil for movement. This is the limit to growth.
People's preferences for family size in a developed world seems to be providing a much more tangible limit to population growth than resources. People simply don't want to have as many children as it takes to substantially grow population when they're rich enough.