Well that is true that 20 years is way too far, but if you are going to think about it. The time now is very fast because of the trend of technology.
Our lives make it easier and fast, so 20 years is not really going to be far. But if I have savings of bitcoin on that time, I'm going to use it for my
daily life.
I agreed in the first statement above, I also can't stay for along time, It is because nowadays everybody want to earn bitcoins and of course none of the member here in this forum don't want to use it in such illegal activities isn't? And all of us want to use in our daily lives. So 20 yrs. too long for me to wait, perhaps even 20years is not yet coming I can invest a new a home ang cars through bitcoins.