I heard a report that says that the earth may have passed its carrying capacity. Which means the life systems of this planet are now in decline and can no longer sustain themselves. I read that 30% of the great barrier reef has disappeared over the last thirty years. My question is can capitalism work as a zero to minimal growth, sustainable system, or is growth required for the capitalist system to work? The assumption that a country like the United States or any country can have 3% GDP growth till the end of time is foolish since we are living in a world in which resources are more and more scarce and areas for the expansion of markets are becoming more and more rare. What are some sustainable economic models?