even at the lowest setting the world gdp still shows an exponential growth. doesn't seem sustainable to me, at some point efficiency in industrialized country h

even at the lowest setting the world gdp still shows an exponential growth. doesn't seem sustainable to me, at some point efficiency in industrialized country has to flatten out, even if just because there are so many customers to sell products to so there's an equilibrium somewhere to be reached, especially since increase efficiency suppresses wages reducing demand.