Since the world is revolving, more innovations are still ahead of us so I don't think cryptocurrency and blockchain will be the final stage of money. Everything is revolving to more suitable and easy way to make transaction. The blockchain world has come to stay and we are expecting more creativity that will change the way we use money. Science never stops so we are moving to somewhere.
I believe that revolution is rotational and exceptional. Years introduce what will happen for it next year. No body knows that they is some thing call bitcoin for the world but when life permit we experience good and bad. Blockchain technology is not for the end product money. I can agree with you. Because creativity is taking over the world and new day new change it is time we are in this century