Bloomberg quotes Nassim Taleb:
A breakup of the euro “is not a big deal,” Taleb said yesterday at an event in Montreal hosted by the Alternative Investment Management Association. “When they break it up, there will be a lot of fun currencies. This is why I am not afraid of Europe, or investing in Europe. I’m afraid of the United States.”
Somehow I think this over-trivializes the situation in Europe. Just a little. Yes, a Euro breakup would create new currencies, and I imagine they could be thought of as "fun" depending on the printing, colors, artwork, etc. But overall, I don't think economic upheaval is the path to "fun."