But realistically the only thing that keeps bitcoin going is the fact that a community of people believe it has value. This same theory, reality applies to all currencies and things of value. As soon as people agree that it doesn't have value it will fail and that will be it!
I remember the stories of Natives exchanging Diamonds for a case of Coke. It's because they did not value diamonds and they only use it as either a hammer or like normal rocks.... today, it's virtually impossible for bitcoin to go down since it is the top traded cryptocurrency and because of it's anonymity,
secret or illegal organization use it to move large amounts of money untraced...