True but right now is just as Jeff said PR. Starts down and the media says the sky is falling. Then someone says not so fast, and it rockets back up. The sky is still falling, just someone said it might not be and everyone jumped for joy and bought back in.
Yea... Really, once the Fed began it's series of QE, and as long as the market believes the printing presses will remain on, all bets are off and any shread of reality is off the table.