Bitcoin is "a form of speculation", says Vítor Constâncio, the vice-president of the European Central Bank who considers the virtual currency not to be a currency at all, despite each Bitcoin being worth, at the end of last week, $3,600
Vítor Constâncio headed the Bank of Portugal for ten long years between 2000 and 2010 and was shuffled off to the ECB where his utterances, mercifully, have been few.