If we, as a species, are able to keep upgrading our economies so that they get ever more efficient, we could theoretically pump out more and more value using the same — or, let's be really ambitious here — fewer resources.

作为一个物种，可以不断发展的经济其产生更多的效益，理论上，可以用同样的——或者再野心勃勃一点——用更少的资源创造更多的价值。