The economy is in good shape, but two big clouds hang over it.

The U.S. economy is in good shape. Is this in favor of the middle, working classes and the poor? According to this article, the two big clouds hanging over the U.S. economic future are wealth and income inequality and raising the economy’s potential for growth through accelerating productivity.  Even though the unemployment rate is very low, but many of those counted as "employed" are "employed" in jobs that pay relatively little with few or no benefits,  little or no job security for fewer than the customary number of weekly hours.