My best (stupid) guess is weapons. US gov has a ton of weapons. Already sells tons of weapons. Now the prices will always remain stable. Other countries would love to know that 30 million usd would always be able to buy an f15. Other countries declaring war will increase the value of the USD, as buying weapons from us government will decrease amount of money in circulation.
I know that. But if I’m given the chance to change the way it works, why limit myself? Choosing a random commodity is boring and doesn’t solve the underlying problem.
Hence the destruction of weapons created before the edict, minus all weapons created or purchased.
This is just shifting the problem forward to the endgame of a disarmed, de-billionaire’d world. In that world, currency would represent “some positive benefit to humanity,” so maybe you get a portion of a park named after you, or a tree planted in your name.
I know that there are many, many problems with this idea. I am under no delusions that this would work. But the idea is interesting, and thinking about ways that we could incentivize the governments of the world to act in the interest of the world’s people is probably a useful exercise.