That is the fact, we are talking of something that might not happen until year 2140 which majority of us would have been dead by then, and even the oldest that manage to stay alive them will not even have the strength and the memory to think of it, and that would be for the other generations that are in the future. Although that year quoted is still something I don't want to believe yet even if we have formula that has showed that, I think bitcoin can even be mined far before then when there is very high level of adoption.

Let us assume that the government of the world really approve bitcoin to be the cryptocurrency of the world, the number of people that we have in the world is more than enough to make the last bitcoin to be mined within the shortest possible time even at 50 percent adoption.