If you compare the US Dollar (or any other currency come to that) with bitcoin they are in hyperinflation.
Im doing a bit of a talk for my customers who are convinced Bitcoin is a bubble so managed to build myself a little collection of previous examples of this phenomenon and thought you might like to see them. Most of these cost less than £10.
1 Quadrillion Pengos from Hungary
100 Trillion Zimbabwe Dollars
100 Million Deutsh Marks
100 Million Dinara (Yugoslavia)
100 Billion Greek Drachma
500,000 Zaire's (Now Congo)