The EU can far more afford to loose Greece than the other way around. Don't for a moment think that Greece pulling out of the EU would cause a house of cards collapse. It wouldn't. It would be hugely damaging, and extremely humiliating, but it wouldn't be fatal. In the long term, it might actually be a positive thing.
If anyone thinks that any deal is actually going to make headway towards solving this issue, they're nuts. Greece, probably more so than any other nation, is the poster child for "Just keep giving the people *expletive deleted*it to make them happy and get them to vote for us. Someone will pay for it some day."
At the height of the madness, it was possible for a Greek citizen to retire with a full state pension and health insurance around age 50. Greece's population is aging, so anyone with a 1/10th of a brain and a calculator could see that it was a disaster in the making.
The EU is partially to blame because they created this mess for themselves by bringing Greece into the fold and completely ignoring the fact that the nation's debt to GDP factor wasn't even remotely close to what was "required" for admission to the EU. Brussels got some vague concessions that that would be rectified, and of course the Greeks did pretty much nothing. Except give away MORE *expletive deleted*it.
Eurostat later came out and said that the information supplied by Greece had been under reported due to a change in governmental accounting and reporting methods...
Right...