( THIRTY years from now, Americans, Japanese, Europeans, and people in many other rich countries, and some relatively poor ones will probably be paying for their shopping with the same currency. Prices

Looking at the cover and featured article of the Economist from 30 years ago, and the prediction of a one world currency by this year ,2018. Taking a closer look at Ripple labs distributed ledger technology

Link : 2018? Bitcoin? One World Currency?