Greenspan's "genius", as I've said before, is to inflate the currency at roughly the same rate as technology is driving the general price level downward, producing an apparent inflation rate of approximately zero, and siphoning off huge amounts of money for government spending without requiring additional taxes. This is, in part, what makes the Bush tax cuts work: the government still gets its cut (by printing it), and people think they're paying less taxes. As long as technology continues to drive down the general price level, no one's the wiser. In fact, it behooves the government to support technology improvement, since the faster technology drives down real prices, the more the goverment can extract through monetary inflation without attracting anyone's attention.