Central bank credibility (as fictitious as that may be) is essential to maintaining the current narrative, BUT central banks are rapidly losing their credibility (which should have happened simply via deductive reasoning a long time ago) and the strains are showing.
Their actions are increasingly wild and extreme, and it's our view that 2015- 2016 will mark the end of this long run of overly-ambitious central bankers and over-complacent markets.