has incredible implications on petrachemicals. the steel industry has become really transformed as a symbiotic relationship between drilling and need for tubular steel, creating distribution networks and needs for different kinds of tubular steel. and the u.s. is seeing incredible flows in inward investment into the steel industry. the manufacturing jobs that we think we can look at in very conservative way, or order of magnitude between 3 million and 4 million between now and 2020. so the implications, gege geopolitically, include what's happening in the u.s. economy and it's pretty profound. >> i have two two-finger interventions. th both michael and ed chow wanted to intervene. quickly. >> the picture ed painted is really important. because it takes us to a time in our history where we did not have as free and open of a global trading system. so preferential arrangements for oil trade and preferential tariff systems and all these things made geography matter a lot more than it does today. where we had a world superpower rival,