Bitcoin is revolution but will it be used on more wide scale payment system?
It may be my altcoin which does that. But Bitcoin will remain the reserve currency of the altcoins and the on/off ramp to fiat. The point is the crypto-currency and blockchain ecosystem is a paradigm shift which will enable the Knowledge Age. The SDRs will be for the dying Industrial Age physical, usurious economy.
but I do not believe that "SDRs" are going to be going anywhere anytime soon, to be honest.
Because you don't understand Martin Armstrong's short dollar vortex thesis which makes the BW#2 monetary reset a certainty. The world will demand the strong dollar be replaced with a cooperate reserve unit, i.e. the SDR. This is a certainty.