In the Story of Stuff, Annie says "you can't run a linear system on a finite planet indefinitely." Another way to say this is you can't have unlimited economic growth with limited resources. What does this mean for the future of the U.S. economy? What changes are needed to ensure that our economic system supports, rather than undermines, the planet's biological systems on which we depend? What do you believe are the most practical pathways toward bringing that change to fruition?