ITT: Statements that are unbelievable, huge, or obscure that can be sourced and verified. Basically, when you hear it, it makes you pause for a second, scratch your head, and think "really?". The US National Debt is about $14.3 Trillion. The thickness of a $1 bill is just shy of .11mm. If you stacked 14.3 trillion 1 dollar bills on top of one another, they'd circle the earth nearly 39 times. @Mods - If you feel this is more appropriate for forum games, please feel free to move it.