To be honest, I think the recovery will be surprisingly fast. Economic cycles are not what they used to be. At this point in history our economic infrastructure has become so sophisticated that within no time you will have an dramatic amount of new business starting to carry the weight of the economy.
It's like a forest fire. First there is the pain, then there is the barren wasteland, but then you see the new light opens up the seeds and the ashes of the old forest feed the young trees. A new forest appears in no time.