I do not believe that the price of bitcoin can go out of control. There are people who have a lot of coins. They can't release control over the pricing of their hands. As a result, they can lose a lot of money. It seems to me that they turned the pump on purpose. Perhaps speculators are afraid of futures and preparing to leave the market of bitcoin.
Lol no one will control crypto currency that is why its ok to say that bitcoin value is out of control, and as we can see right now value are constantly fluctuating no one will want like this because it getting my heart beat fast, i do not think it was good for the future of bitcoin.In my humble opinion it is under control, the question is - by whom control? Chinese maybe..
What if nobody controls btc. Why the Chinesw? Why not the Japanese, Autralian...? Bitcoin is suposed to be decentralized, so...
Im worried by BTC/Altcoin correlations. This insane spike is literally slaughtering the market. 
Me also i am worried, hoping that this would give better result.