The document discusses the future of the U.S. petrochemical industry downstream sector. It predicts that consolidation followed by regionalization followed by extinction will occur. Recent expansion was due to shale gas, but this is not sustainable long term. Free markets involve winners and losers, with supply adjusting based on competition and prices. No economic system can grow indefinitely without limits on resources and innovation. The future of the petrochemical industry is uncertain as low cost oil and gas have fueled growth but these resources cannot be produced indefinitely at prices that don't make economic sense.