$DOGE.X fundamentally you need a currency that has an inflationary factor in it if it is to be used as a interstellar Currency... furthermore when you have to calculate weight fo any materialistic currencies they don’t see economical for interstellar travel. Crypto currencies are the modernization of the Templar check system. And this makes it so much more simplistic and easy. So Dogecoin could become the Interstellar Credit system we use for travel between Earth and Mars and beyond!