Nouriel Roubini is a professor of Economics at the Stern School of Business at New York University and an economic consultant who has been nicknamed "Dr. Doom" because of his dire economic predictions. He is also the cofounder and chairman of the firm Roubini Global Economics. He is widely credited with predicting the popping of the U.S. housing bubble and resultant economic collapse that began in 2007.
Roubini has predicted that U.S. financial losses will more than triple to $3.6 trillion, and has advocated nationalizing U.S. banks, saying that most of them are insolvent. He has also called for an overhaul of the international bank regulatory framework.
In June 2011, Roubini published an article on the impending breakup of the eurozone and issued statements at a interview in Singapore suggesting that crises facing the global economy would come to a head in 2013.
Roubini has also been outspoken in his disdain for the popularity of cryptocurrencies and blockchain technology. In October 2018, in written testimony to the Hearing of the US Senate Committee on Banking, Housing and Community Affairs, Roubini referred to Bitcoin and other cryptocurrencies as "useless vaporware garbage" and "the mother of all bubbles" and to blockchain as "the most over-hyped – and least useful - technology in human history." 
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