Here is one more excerpt from Larry Summers' speech of March 13. I find this excerpt to be of particular significance with regard to the concept of Sustainable Prosperity:
"Of fundamental importance is ensuring that we do not exchange a painful recession for another unsustainable expansion. That would not only be irresponsible – it would be counterproductive. We have seen what happens when we pursue policies that produce short-term, instead of durable and sustainable growth."
SPX at 1127.78 as this post is written