>> “and maybe even copper and nickel” <<
.
Chromium.
You cannot fight any kind of war without chromium, and tungsten.
And war is guaranteed to be the world’s future until Daniel’s 70th week gives us a 7 year pause, and then the big one.
But chromium and tungsten have never been used on a large scale for physical coins that copper and nickel have. That’s why I think when we go back to asset-backed currencies it will be based on four precious metals (gold, silver, platinum and palladium) and two industrial metals (copper and nickel).
Editor...what metals are used in technology? I remember reading something about metals being used which are necessary to these functioning, though minute amounts they are critcal.
Excellent observation!
Will begin looking for sources of chromium and tungsten.