Bitcoin can be a currency in the future, because it has a secure properties, such as Cryptocurrency which has Blockchain, blockchain very secure so that it is impossible to reconcile them. The value of Bitcoin fluctuates a lot, other currency has a central bank to stabilize their values, unlike the Bitcoin, Bitcoin does not have a Central Bank, but we see a big change in its value on a regular basis. Seen from the nature of the Bitcoin, I believe the Bitcoin can be the money of the future.