so detroit dry dock, a seminal firm in the 19th century, frank kirby, a great shipping entrepreneur comes there. and they then perform a critical role educating young people who work with engines like henry ford. henry ford gets his start with engines in detroit dry dock. he becomes part of a great chain of entrepreneurship. detroit in the early 900s feels like silicon valley in the 1960s. there's, basically, an automotive genius on every street corner, all of whom are, you know, innovating and inventing and supplying each other with input, trying to figure out the new new thing. and they produce the inexpensive automobiles. now, one of the tragedies of detroit and, unfortunately, there are going to be several i'm going to talk about in the next several minutes, is that the way they're able to figure it us out is by doing something that's fundamentally antithetical to cities. they do it by creating great walled-off factories that are vertically integrated and provide employment for less educated americans on a grand scale. now, on one level this is great, providing jobs for americans who