No one proposed to actually use one trillion dollars worth of platinum to make the coin. (There’s only about 16 tons of platinum on the planet, anyway.)
The plan would be to make a pretty coin of perhaps a few ounces, and label it with a face value of $1,000,000,000,000.
Otherwise, you’re not making money out of nothing, you’re not devaluing the currency fast enough to kill off the masses, and you’re not realizing the Cloward-Piven strategy at a sufficiently accelerating rate.
Bring on the $Toony...