Any number of problems deeper recession, slower privatisation, fewer structural reforms could bust the forecast that Greek debt should drop to 120% of GDP by 2020.

ECONOMIST: Charlemagne

If Greeks reject the 50% controlled default on the debts they owe to the banking sector, then the arithmetic I revealed on Newsnight on the eve of the Euro summit comes into play - without a 50% haircut, and a further 130bn euro bailout, on top of 110bn, Greek debt spirals out of control and the country goes bust.

BBC: Greek referendum is coin-flip on euro exit

Spain can now go bust on its own timetable, instead of one dictated by a Greek exit from the euro.

BBC: Greek result buys Europe time