How can the bitcoin roll down?

The key principle of virtual currency is that its transaction may be sitting in any corner of the world, just need an internet connection. The transaction is done through the exchange firm.
Virtual currency is kept in the virtual wallet and the database in which the store stays is called Blocken. But can the bitcoin fall too?
The answer is not so easy, but when the hedge fund suddenly withdraws its money, it can fall. In the New York Times, Zhou wrote, "As soon as this news is leaked that a big investor is extracting his money, it can stir up and other investors can also withdraw their money."
America's largest bank, JP Morgan Chase's chief executive officer (CEO) Jamie Damon and veteran investor Warren Buffett has already betrayed BitQuinn and says that the pyramid is like schemas.