Gold is a good high value density financial medium. Regardless of the objective value, it always has been and always will be in demand. It's best for carrying v

Gold is a good high value density financial medium. Regardless of the objective value, it always has been and always will be in demand. It's best for carrying value from one side of an economic crisis to the other, and taking advantage of some good deals that crop up in the meantime. If anything the high value density makes it hard for anything but large transactions. Guns? Well, ammo really. Guns are plentiful in the USA and are extremely durable. Ammo is more suitable to currency type usage, being handy during the crisis, comes in small units comparable to coins, and the value of each is around a dollar making it convenient for smaller commonplace transactions.