One Hundred Billion Bucks

Zimbabwe decides to print a 100 billion-dollar bill. Can someone with a better economics background explain this to me? 2.2 million percent inflation? Is this like one of those tidbits in my history textbooks in which money isn't worth the paper it's printed on? My head asplode.

This is evidence towards something I have long suspected: economic indicators and statistics are fiction. "The gas prices keep going up! There's nothing we can do about it!" Couldn't we just change the price signs at the station?

I'm done with you, economics!