We have been through years of economic decline and stagnation. Large government stimulus programs are over, though they did more to survive than prosper. Interest rates are at rock bottom, government debt has never been higher, unemployment remains high, and the dollar is strong largely because all other currencies are in trouble. The war is finally over. After years of foreclosures, people are buying homes in large numbers, and young people are going to college in droves.
The above paragraph could describe both 1945 and 2013. After WWII there was fear that the nation would fall back into depression. But we didn't. Partly it was because of the GI bill that enabled widespread investment in education and housing, and partly it was because private deleveraging had occurred. But I think it was mostly because of widespread optimism.
I see optimism returning today, I think because people see hope and are fatigued by prophesies of financial austerity and apocalypse. Good.
What remains to be seen is if inflation and interest rates will skyrocket as growth returns. If they do, then the banks are in trouble and their business model of borrowing short and lending long may even be untenable. Yet interest rates and inflation rose very gradually after WWII, and I bet that they will now too.
That is particularly true if you appreciate that the Fed's QE only created cash by purchasing bonds, and the Fed can remove the cash by selling those bonds if needed. Nor for that matter has our money stock (M2) increased at a faster rate since the financial crisis hit. Most QE fear mongers don't understand what money or the monetary base is. Ignore them.
We face many problems, and the next decade will not be utopia. But as I look back to the late 40's and 50's, I bet that the next decade will be a good one for the US.