“In the 19th century, America had a railroad boom, bubble and bust. Some people made money; many lost money. But even when that bubble burst, it left America with an infrastructure of railroads that made transcontinental travel and shipping dramatically easier and cheaper…

“The early 21st century saw a boom, bubble and now a bust around financial services. But I fear all it will leave behind are a bunch of empty Florida condos that never should have been built, used private jets that the wealthy can no longer afford and dead derivative contracts that no one can understand. Worse, we borrowed the money for this bubble from China, and now we have to pay it back — with interest and without any lasting benefit.”