The business cycle is not dead. America has many coping mechanisms to deal with the current hangover. As it has before, this country will unleash the innovative, hard working and productive side of its citizens.
There is plenty of uncertainty now, but much less risk, because high quality stocks are available at much lower prices, and logically an investment is more attractive and less risky if made at a lower price.
It's not the government's job to make stocks go up. It's their job to ensure stability and confidence to counter the fear and panic now so prevalent all over the world. Markets will find their own equilibrium when that happens.