One of the reasons banking is getting so concentrated is because everyone wants to get to the point where they are too big to fail. I don’t think that is such a wonderful thing.
It should shrink. It has really got overblown. The size of the financial industry is out of proportion to the rest of the economy. It has been growing excessively over a long period, ending in this super-bubble of the last 25 years. I think this is the end of that era.
~ George Soros, "How to stop the next bubble," Prospect, July 2008