We say bitcoin is a decentralised currency and cannot be controlled by any one.But in recent, we saw a great pump followed by a big dump in bitcoin price due to situations in china. Price suddenly rose from $750 to $1150 followed by a sudden fall to $850.So we can say bitcoin is partially controlled by china.
I think so,certainly very reasonable if China which controls bitcoin. when the Chinese New Year soon and bitcoin mining companies many dismiss employees, of course, the stock bitcoin not be increased but demand remains high, of course this is causing bitcoin prices rose dramatically.