We don´t need much to see that we have a global problem, look at the debt from america's finances, it's ridiculous, and it is an exponential growth.
Ponzi Games is the world we live in, Ponzi was arrested because he created a scheme doomed to failure. My point is, the countries around the world are using debt to pay older debt, and it is getting bigger and bigger, is just a matter of time until something goes wrong and explodes the whole system.