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?
Bitcoin is a decentralised currency so the nodes (computers) technically now control Bitcoin along with miners.
Other than that, nothing else controls bitcoin (other than the people who write the software clients for bitcoin to run).
No centralized agency or organization does, that's why it is so great! Supply and demand dictates the value, not a government. Its value is completely in the hands of the general public.
Yeah, you get the point. The control is in our hands. I do not want the government control my money. Like happen to yunani people. People in china were buy bitcoin for avoid government control too.
the control is on our hand yeah , so if chinese group sell all their bitcoin
which it's a lot , what do you think would happened?
and buy back again in mass , this is looks controlable.
It is very contorllable. However, if you sell the bitcoin and buy them back again you wouldn't really be gaining much money (you'd actually be losing money instead).
Once the price falls, even by a small amount, the demaind for the bitcoin at the new value increases -thus meaning that the price starts to stabalise unless a large amount of bitcoin is sold (but there would still be more people buying it and it'd be unhelpful to both the owner and the network for them to sell a large proportion of Bitcoin).