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."
As Greece struggles with a financial crisis, there have been violent protests, creditors demanding their money, people losing their jobs and officials hunkering down.
A decade ago, that was the scene in South America when Argentina and Uruguay defaulted. The two handled the economic calamity in very different ways. Economists say their approaches — and what's happened in each country since — are instructive for European leaders as they try lifting Greece from its turmoil.