This is why I think economic concerns are secondary. It's not that they're inconsequential, but moving to a no-debt economy or some perfected form of communism will not stop people from having kids above replacement, for instance. It won't stop us from destroying the soil with mechanized agriculture, etc...
Yes truly. That is why I am not completely sold on the premise of Dave that debt based economics really was thy pivotal factor that allowed for humans to decimate Earth. Yes I think it has hastened and amplified the voracious nature of humans yet correctly we were already well into this process with the colonization of the Americas and the discovery of Fossil Fuels.