I heard this from this asian conspiracy theorist from many years ago like 2011, he said in the future there WILL be a one universal currency. Which he meant every where in the world will use that currency and other currencies will disappear. But this universal currency where will it come from? bitcoin or from the fed? I think in the future there will be 2 universal currencies, that 1 is the bitcoin and the other will be from the fed. So what do you think will happen if most of the world jump onto bitcoin? 
I agree to this. its not just ASIAN though its all over the world . There is a Great chance that it will start with this BITCOIN the question is when or how it will be centralized and controlled by government or there will be other digital currency too.