Stefan Ingves, governor of Sweden's central bank, told a meeting of the country's banking industry that trading bitcoin was like trading stamps and that the unofficial currency would eventually fail in some way.
"Private currencies usually collapse sooner or later," Ingvis said. "of course, you may get rich by trading bitcoin, but it's like trading stamps."
Ingrid's comments are broadly in line with the views of other central bankers comparing bitcoins and cryptocurrencies. In February, Gabriel Makhlouf, governor of the Bank of Ireland, said he needed to be prepared to lose money when investing in bitcoin. Andrew Bailey, governor of the Bank of England, also said in May that the cryptocurrency has no intrinsic value and could collapse to zero, and investors should be prepared to lose all their money.