“The idea that the government of a major advanced country would default on its debt — that is, tell lenders that it won’t repay them all they’re owed — was, until recently, a preposterous proposition. Argentina and Russia have stiffed their creditors, but surely the likes of the United States, Japan or Britain wouldn’t. Well, it’s still a very, very long shot, but it’s no longer entirely unimaginable. Governments of rich countries are borrowing so much that it’s conceivable that one day the twin assumptions underlying their burgeoning debt (that lenders will continue to lend and that governments will continue to pay) might collapse. What happens then?” asks Washington Post writer Robert J. Samuelson.
"I grew up in New Jersey in the 1970s and that experience gave me everything I needed to become a skeptic."
The paper does not prove the existence of dark matter, but it mostly eliminates a rival theory called Modified Newtonian Dynamics.
How to figure out the right amount of time for any project.