Much of the information Friedman says comes from Ruchir Sharma could be seen through simple observation. By the time it is written about so much has already happened. For example Tech firms crowding out innovative new firms starting from scratch is happening since 2000, from the Clinton, Bush and Obama administrations. By the time the concept makes it into the economics textbooks many years later it is obsolete. In economics textbooks of the eighties crowding out referred to governments crowding out private firms in the competition for capital. Concepts of comparitive advantage in economics textbooks were similarly obsolete when Japanese and Chinese competition in the last three decades brought into play a very different model of competition of subsidized private and state run companies focussed on dominating key industries that never made it into textbook economics and theories of experts. Comparitive advantage theory in textbooks were too simplistic not able to account for real life situations in which a determined national competitor could move up the ladder every few years in sophistication and technology to compete in products at many levels. The old textbooks simply said Portugal would make wine because it had some advantages and America with its advantages in steel production would make steel. This kind of theory put many people to sleep as other nations took over American markets- first steel, then electronics, then telecom, and then renewable energy. To protect American workers Robert Lighthizer and other American negotiators of trade with China, Japan, South Korea, used their own head and observation of what was happening. This was a better guide to the best response to protect American workers. Doing what makes sense, doing what works for final delivery point to the intended beneficiary, the American worker, or European worker, or Indian worker, provides a better way to get things done. ...