What can possibly go wrong?

When you add it all up, according to Das' research, a single dollar of "real" capital supports $20 to $30 of loans. This spiral of borrowing on an increasingly thin base of real assets, writ large and in nearly infinite variety, ultimately created a world in which derivatives outstanding earlier this year stood at $485 trillion -- or eight times total global gross domestic product of $60 trillion.

in MSN Money Central, negrito meu.