For me a city…is a complex but incomplete system. And in that mixity of complexity and incompleteness lies the capacity of cities to have very long lives. Much longer lives than very powerful corporations, which often are very closed systems.
I think one first step is to distinguish between traditional banking, which sells money it has (or it can borrow very quickly, whatever) and finance, which sells something it does not have. And in that selling what it does not have lies its creativity. It has to invent instruments. And secondly—and they go together—it has to invade other sectors. Because it itself does not have what it needs to produce.