I read somewhere that in 2008, when Greece introduced the austerity measures recommended to it by the more affluent EU states, ECB, IMF and all the rest. At that time it was carrying debts of approx 110% of GDP.
After a few years of cutting back on services, forced redundancies and restructuring, it is now 160% of GDP
The Greek people have basically said "Bollocks" to this, kicked out the former government and turned their backs on the debt.
Can't say I blame them.
What happens now to that silly idea of a single currency is anyones guess.
The analogy I think of is; What happens to all the lovely, different coloured plasticine when you mix it together?
It turns to toejam brown.