>>10227419 Suspension of Payroll Tax (a notable)
First off, it will be at least two metals - Au and Ag.
There's a good chance Gold, Silver, Platinum and Palladium will all be used, however. Our frens hinted at this if you knew where to look.
What you guys have to understand, however, is that this doesn't satisfy the world's dependence upon Credit.
Ask yourself now how this will be solved.