Bitcoin is more than just an investment. It is the future of money system. When people realize that Bitcoin will break the traditional way of banking system, they will appreciate what bitcoin can offer. Bitcoin is at it's early stage, big companies have just started adaptating the use of bitcoin. The next few years will be big for bitcoin as more and more institution and companies are taking interest on tge use of it.
Bitcoin is the future. I am sure about that. But I am not sure about whether it is the future of the monetary system, or whether it is the future of investment. Satoshi Nakamoto initially designed Bitcoin as a mode of payment. But nowadays it is mostly being used as an investment asset. Unless we resolve the scalability issue, Bitcoin will never gain traction as a payment mode.