Having discarded all their rhetoric about the scope of the detachment, the banks largely avoided or opposed the crypto currency (Goldman Sachs, sensing the possibility of making a profit, is one notable exception), often referring to their volatility and the ease with which they can be used to launder money as a quality , which disqualify them from a serious relationship (although, as we recently saw with the US dollar, it is possible that banks need to rework this argument of volatility a little).