That's what the headlines should have been:
We also are in a state of shocked disbelief. Or perhaps not. Instead of blaming himself for his monetary policy and admitting once and for all that central banking is not the best monetary system available (he actually admitted that the economy is too complex to be forecasted by Fed experts), he blamed it on the free market. Greenspan true mistake is to absolve himself from all responsibility by saying that he had faith in the free market system and that that system abandoned him (i.e. it had a flaw).