Imagine buying $1,300 worth of platinum to back a $1 trillion loan
Why a loan? The point of a coin is to not need to borrow the money. Not that I'm defending such a move.
I was referring to the 1T platinum coin the US gov minted for the FED. An ounce of platinum is worth roughly $1,300
Yes, so? What loan are you talking about? Coinage would not involve a loan. That's the whole point of using coinage over bonds.