How could bitcoin disappear? I don't think that could happen. It can reduce in value to 0.01 cent but that doesn't mean it will vanish and not be available to be used as a currency. Nothing in the online world truly disappears. That is the number one rule of the internet.
off course can bitcoins disappear and i think that would happen in the future not now not in 10 years but after that allot of people will drop the coins and do nothing with it because of the price for sure1