I think job creation has been decoupled from economic growth. That's terrifying for the lower class today, and will eventually be terrifying to nearly everyone.
I also think central banking has lost its effectiveness. We've had 6 years of 0% interest and money printing -- the pedal is to the metal -- but labor participation for working-aged citizens is stuck at a low not seen since the mid-1980s.
http://www.washingtonpost.com/blogs/wonkblog/files/2013/09/E...
Scary stuff...