We are immerse in a world of continuous changes, and that is why I prefer to be very cautious about my foresights in financial matters (bitcoin included). But I tend to think that nothing will be as we are thinking and future holds great surprises for everybody. I am no so convinced about the dominance of bitcoin because I have no doubt that future will bring more advanced technologies to exchange products and services, although I have no doubt that in 50 years there will still be dollars and bitcoins.