The debt of Japan is so huge (to put it in relative terms, Greece's debt is nothing compared to it) that they would need half of the developed world to cater to it.

Japanese debt is mostly to its own population, while that of Greece is foreign owned. That's a huge difference.

Not really. In the end Japanese will have to pay, in one way or another, and that will be either with huge taxation, or dramatic inflation. Or Default. No good options out there, really.

The Japanese can themselves decide which option to take, rather than being forced into one from the outside. The current elected government seems to have taken the route of inflating away the debt.

> The current elected government seems to have taken the route of inflating away the debt.

Yeah, and it's not a pretty way to go with solving the debt problem. This will result in higher prices for everyone, destroying savings and hurting in result the private sector. "Just" to save the government.

It is not to save the government, it is to save the money from the people who own the government bonds, who are mainly Japanese. It is a redistribution issue.