This is an essay that does not question applicability and function in the future.  We have the simplistic grow is good, or greed is good without context or limits. Yes, a baby needs to grow as doe a child but if the growth process is not controlled and stopped early death results. When part of a person grows without control we call it cancer with primarily bad outcomes.
There is a relationship about human impact I=f(P,A,T) which is a function of population, affluence, and technology. Just as there are limits to growth in humans there is also a limit to grow as a social good. People reach a certain size and then start to improve in quality by learning whether a better runner or a better thinker. 
I agree that we must change more than ever before but growth should not necessarily be part of that future.