The success of independence movements around the world like #brexit make a single world currency more unlikely by the day.
The desire for one world currencies might be measured by support in additional #brexit votes--until the desired outcome is achieved where the UK remains part of the EU. This may represent the ideal outcome for bankers who seek control over the entirety of the world's monetary supply under a one world currency.
It may be too late for the one world currency. They may have to wait decades until people collectively forget about the failure inherent in pro centralization movements like the european union to try again. Distrust in governments and lack of faith in world leaders is growing as conditions worsen. Independence is gradually being seen as a preferable option, which decreases acceptance for wild state based policy such as one world currencies or one world governments.
Going down memory lane, the only region which I believe the issue of one currency has survived is only the EU and with the vote of UK to exit, it just dealt a blow to every move that have been made by other regions to first unify their own currency before talking about the world. Today, even countries that have the ''dollar'' to their name find a way to add their identity to it.
The fact is, the issue of currency goes beyond just something that is being used as a medium of exchange. It goes to the root of the country. For example, some countries currency carries picture of a revered leader, some the tribes that makes the country, others is about a dominant trade, others its on the basis of culture which they have been used as a medium of connection between the new generation and the old generation that have gone ahead of them. It them means that with one currency, all of this will be eradicated. That alone won't go down without some opposition.
Another factor is the individual country ego, how exactly would United States be convinced to adopt another currency which would mean letting go the power their currency have taken in the world economy and convincing China or Russia on how they fall in line to adopt the US dollars. Putting all this together, saying its too late to achieve that would be an understatement.
