Who in the world controls the bitcoin? I don't understand where it appeared and how it began to be one of the official currencies?
Who controls the course of Bitcoin?
I guess it's the investors, who control the course. Users, in fact. Including you, if you personally buy and sell btcs. But it is important to understand, that your control over Bitcoin is proportional to how much you own.
I'm thinking that many are controlling the course of bitcoin and most of them are the whales. But for most of us who are just small time bitcoin traders we don't have something to control with it. Instead we can help the adoption of bitcoin by simply keep on using it or spending it.