World's single currency? As if the world government will agree on this one and this can be the fulfillment of many conspiracy theories about one world government, one currency.
If Twitter CEO believes bitcoin like so then why Twitter is banning the advertisement of a crypto.
Mate there's no official statement from twitter that they are going to ban cryptocurrency advertisements. Those articles came out does have "likely" on the title and authors are just speculating since google and facebook made the first move.