(a) Gold: shiny, heavy, and generally useless. Valuable only if someone else agrees it is valuable.
(b) Guns, ammo, food, and fuel: Useful. Inherently valuable and good for barter.
Fiat money is consists just dead trees with ink on them or worse, it's created digitally.
The story goes that over half of the current USD money supply has been created in the last 4-5 years or so... can you say inflation?!? :O