“United States Mint bullion coins are sold based on the prevailing market price of gold, silver, platinum, or palladium plus a small premium to cover minting, distribution, and marketing costs.”
You lost. Take a hike!.
Source:https://catalog.usmint.gov/coins/precious-metal-coins/bullion-coins.html
Krugman never once suggested that the Mint produce a bullion coin. Just a coin made out of platinum.
Your paranoid conspiracy flake Luther is the person who added the ‘bullion coin’ and ‘token’ terms to what Krugman said.
It is a straw man argument.
Krugman had in mind a 1995 law about platinum coins that says, “Notwithstanding any other provision of law, the Secretary of the Treasury may mint and issue platinum coins in such quantity and of such variety as the Secretary determines to be appropriate.”
It actually isn’t that complicated because the Treasury since 1933 has had the authority to issue currency in any denomination authorized by Congress. And it need not be backed by anything.
Krugman is correct that the coin or note can be issued in the denomination of one trillion dollars. But the choice of platinum for the manufacture is not required. Not at all.