Once upon a time, the ultimate put-down to a bright spark was to say, 'well, if you're so smart, how come you're not so rich?'. Wall Street Crash 2.0 has rather undermined this ploy, by making it clear that an awful lot of very rich folks were anything but smart. It turns out that we were unduly dazzled by the Masters of the Universe, but we had to wait until they had vaporised the US economy before getting wise to the fact.