Bitcoin is not the only cryptocurrence, but digital money is the most important. And I understand why internet money with a funny name looks clean and futuristic. But the unregulated global virtual currency, realized by nothing or stabilized by market forces / government agencies, brings back the biggest and worst problems of pure money. The uncontrolled instability of Bitcoin allowed him to return to this setback, but also a seemingly deadly case in the first place. Fluctuations in violent values are back! It's like the Great Depression in a microcosm. Bitcoin is created by the people , run by the people and it can be destroyed only by the people.