The funny thing about tsunamis is that you can't see them coming. If you are a ship at sea, you won't even notice them passing under you. It's not until they hit land that they rise up and smash everything.
Last night I was reading a paper about the depression of 1920-1921, which pointed out that prices dropped by over 40%, while employment and output also dropped considerably, but it was short and brief, and we've forgotten it. Why? That's a very good question. The author suggests that wages were more flexible. Another suggestion I would make is that the world had not gone back onto the gold standard yet. But I don't really know the reason.
http://www.gmu.edu/departments/economics/bcaplan/econ.html
Just to show the support for the other side of the question, here's a link to a pro-paper money organization that seems interesting.
http://www.monetary.org/