Bitcoin Will Be World's 'Single Currency' Says Twitter CEO

"The world ultimately will have a single currency, the internet will have a single currency. I personally believe that it will be bitcoin."

Jack Dorsey, chief executive of Twitter and payment company Square, has spoken of his strong belief in the future potential of bitcoin.

In an interview with The Times published Wednesday, Dorsey, himself a noted bitcoin investor, said he believes the cryptocurrency will take over the U.S. dollar's dominant place in world finance and become the primary global currency for payments.