Will bitcoin price ever cease to fluctuate so hard? I mean currently it seems as if it's fluctuating just because of the trends among people who believe that investing into bitcoin, given some time, is 100% profit. But what if the so called bubble would burst, shouldn't the price get more stable?
The short answer is not, it won't.
As long as Bitcoin remains a vehicle for speculation, we will continue to see huge price swings now and again. A purely speculative asset has no fair price, so it can move in both directions as if there were no tomorrow. If Bitcoin were actually used in commerce, then we could speak of a fair price of one bitcoin which would be determined by the value of goods and services people could buy with it. But because there is only speculation, there is no such reference point and thus no limit to volatility.