“From what we can identify, the only reason today to buy or sell bitcoin is to make money, which is the very definition of speculation and the very definition o

“From what we can identify, the only reason today to buy or sell bitcoin is to make money, which is the very definition of speculation and the very definition of a bubble,” Thiam said. He added that in the history of finance, such speculation has “rarely led to a happy end.” https://www.bloomberg.com/news/articles/2017-11-02/blankfein-says-don-t-dismiss-bitcoin-while-still-pondering-value https://www.bloomberg.com/news/articles/2017-11-02/blankfein...