bubble Bitcoin has not reached critical mass to be seen as currency, UBS CIO says November 19, 2017 UBS throws shade on bitcoin once more, this time through the words of its chief investment officer, Mark Haefele. UBS… Bitcoin, not a fad and not going away overnight, Morgan Stanley CEO says November 16, 2017 Bitcoin is by definition speculative, there are issues around it, but it's not a fad and it's not going away… Nobel-winning economist Robert Shiller calls bitcoin a fad, compares it to bimetallism October 17, 2017 Yale professor and Nobel-winning economist Robert Shiller calls bitcoin a fad, just like bimetallism before it. “I’ll take bitcoin, too,…