“President Donald Trump’s economic adviser, Peter Navarro, has vowed to restore U.S. manufacturing supremacy. This is no surprise — Trump’s election campaign emphasized the promise of a return to the industrial economy of the mid-20th century, before countries such as China supplanted the U.S. as the workshop of the world. But this push is unlikely to succeed. Changes in the U.S. industrial mix, and in technology itself, mean there’s no going back to the economy of yesteryear.”