Probably the only really valid argument for owning physical gold. Gold (silver too, I guess) is something you can carry with you and it will have value anywhere in the world. No need to try to convert an out of favor currency (or bank account) from an out of favor country you may be fleeing to a valid local currency (or bank account) in whatever country accepts you.
You know, for large amounts of money, diamonds might be even better. Easier to conceal (you could sew them into the linings of your coat), harder to detect, take up a lot less space. Wonder why no ones' ever thought of that?