Greece is only a small part of what is coming, Spain with more the 25% unemployment close to collapse, Italy is right behind Spain, Portugal right there too, and Ireland. So now if this dominoes full then we do need to know since that will take the U. S. down into a collapse. Now add Russia with it’s Ruble going down over 50% and close to a collapse, Japan with a national debt so high that if Europe collapse may go down with it.
It is maybe a year to two away since they will print paper money like crazy to hold everything up.
Some talk about the end of 2015 but I think it is more close to 2016.