Greece is broke. But there's no blueprint for a country to declare bankruptcy, so Greece's creditors are sort of making things up as they go along.
"You're taking some sort of loss," Hans Humes of Greylock Capital Management told me. "But it's like, how much of a loss do you take? There's this thing called sovereign immunity. You can't go in and take the Acropolis."
Greylock Capital Management is a hedge fund company that holds Greek bonds. So Humes is sitting across the table from Greece. There are lots of other creditors - people sitting alongside Humes - and they all want different things.
Hedge funds want as much money as they can get back. European banks want their money back, too, but they also want the euro to stay strong. Greek banks just want to make sure the Greek government doesn't implode (but they also need some money back).
And the European Central Bank wants all of its money back, so far, and doesn't want to take a loss at all. All of these people are on the same side of the table, but they have vastly different motivations.
The Greek side is just as diverse. It's the European Commission, it's Germany, it's the IMF - it's a whole slew of people, way beyond the Greek government that did the original borrowing.
"I've had the feeling a couple times," Humes says, "when you'll be making progress, really tangible progress, and something will come out from somewhere, and you sort of have to go back to the drawing board, you know, we have to check with so-and-so."
This happens on both sides of the table.
Humes' side did come to a consensus, as announced Monday night. They put a 50 percent loss on the table. They agreed to accept 50 percent of the money they are owed - to be paid out over a period of time.
The other side of the table? The Greek side? They sent it back. Discuss. Start over.
The stakes are huge. If they resolve this amicably, then business might be able to continue as usual in Europe: countries borrowing money, people showing up to lend it to them.
But if they don't, Greece will have a hard, chaotic default. The kind of default that could mean a halt to business all across Europe.
Greece only has enough money to make it until March 20. It needs the next round of bailout money. But in order to get that money, Greece has to cut a deal.