If you don't know, Nouriel Roubini is a well-known economics expert, and he made a not-so-happy prediction yesterday: That Greece will exit the Euro and Samaras’ government will collapse in 2013. The interesting thing is that he did not make a formal announcement or publication of this thought anywhere but Twitter. His tweet is embedded below:

Draconian Troika program for Greece ensures deepening depression that will trigger Grexit by 2013. This government will collapse next year

— Nouriel Roubini (@Nouriel) August 8, 2012

What do you think of this prediction? Do you think he's right?