Ultimately, growth is limited by physical constraints, given our current understanding of physics. But it seems extremely premature to be worrying about this m

Ultimately, growth is limited by physical constraints, given our current understanding of physics. But it seems extremely premature to be worrying about this much unless you believe a singularity is right around the corner. And even then the idea of the singularity implies to me that we have no ability to predict what will happen - perhaps there are still enormous leaps to be made in physics that make our assumptions unfounded, or perhaps a greatly increased understanding of ourselves will eliminate our desire to continue to pursue growth indefinitely.