TSMC will build a third plant in Arizona with the $6.6 billion in grants it gets from Biden's CHIPS Act. It will increase its investment in the US from $40 billion to $65 billion, essential to make the US a manufacturing hub for semiconductors. Intel, Samsung and other companies are making similar investments in the US in semiconductor plants. After years of post Reagan/Friedman period orthodox economics that led to the US chip industry and other advanced manufacturing following textiles to Asia, the US is making its policies follow actual practice and experience. This experience shows that in semiconductors with long lead times of a decade to build plants the country which supports its semiconductor industry gets ahead while others following orthodox Reagan/Friedman period economics fall behind. This has revealed the danger of a theoretical economic textbook approach that doesn't work and endangers American manufacturing and technological leadership. A culture wrapped around the textbook approach has led to the US and the EU, India, losing their competitive advantages and losing manufacturing in industry after industry, with loss of millions of jobs and deindustrializing. It has also led to decline and increasing lack of economic opportunity in towns and communities dependent on this manufacturing across the US and the European Union. ...