Bitter bitcoins: like cryptocurrency tanks, these experts are having the last laugh


Vitor Constancio, Vice – President, European Central Bank September 2017 | "Bitcoin is a kind of tulip, it's really a tool of speculation for those who want to bet on something that can go up and down 50 or 40 percent in a few days, but certainly not a currency, and we certainly do not consider it a threat to central or monetary policy, that's for sure. "(Reuters)

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