Maybe hes really from the future and gave us the chance to change whats coming,it can really happen if the BTC will be accepted worldwide,the government wont have anything to tax on,cash will be useless and the BTC will dominate thats a scary picture of our future.
Obviously he is not a time traveler as he says that he is,he just uses his imagination to tell a story that came to his head at that time,for example he only mentions that in that time there are two main forms of wealth in the world.Land and cryptocurrency,He leaves out gold,diamonds,etc things that always had a lot of economic value,on the other hand,if we should care more about the environment and the feeding and care of the species we should not be so afraid of the future,also if there was no government who would be responsible for issues such as social security, justice, free education,etc.