Why does the history of global equities look so boomy and busty?

It has to be our brilliant global central bankers.  They seem to feed wild speculative orgies that lead to collapse.  The financial elite make a fortune on the upside and unload onto normal people and the 'to big to be smart and stop banks from being too big to fail governments' on the downstroke.

This profile will continue so long as central banks are effectively controlled by bankers to the detriment of everyone else.

PS:  You want to find your income inequality:  there it is.  But the Obami are busy 'reforming' pay for burger flippers and trying to raise taxes on the upper middle class.  Wall Street is a key corporatist constituent, you see.