there is this question that I've been running through my mind for quite a long time about how the world will be in the next 50 years from now, as we all know technology is taking over everything and I was thinking about technology in terms of currency and I think that in the next 50 years from now if the world will accept cryptocurrency as the only mode of payment for goods and services , do you think this will be possible that in the next 50 years the world will be so digitalize to the point of accepting cryptocurrency as the only mode of payment ?