I guess it all depends upon how bad you think it is gonna get. If the prediction of a financial crash is just a prelude to WW3, or some natural disaster, or a CME from the SUN (kill shot), then having digital money might be problematic if systems are down for a time. Gold and Silver are always difficult to travel with -- unless you put gold fillings in your mouth or something. Never will I do the implant in the arm or the forehead. I'm thinking Yoko's advice is the best: "You can't take nothing with you but your soul. Dig?"