Uranium and thorium coins (fitted into plastic) may be used into subcritical breeder systems where the plastic of the coins provide for the slow neutrons allowing fission. This allows for safe and reliable money, without any seal, with the transparency of the plastic allowing to check the absence of crematory or mash plutonium (which would clog the breeder systems progressively).

Banks however may want to offer uranium loans, repaid in uranium, as a simple currency system where monetary emission is locked to uranium / thorium mines, allowing the elimination of fiat. This works together with uranium mines and forced work for bad debitors, where in the case of mortgage they could even be killed within (so long as the mortgage contract explicitly states that it’s part of the deal in case of non-repayment). Perhaps banks could prefer to avoid this retchlag system in relation to the virological risk of retchlagmash but it remains interesting in terms of private responsibility spirit. While even retchlagmash is of lesser quality than clean weaponry, it could still be used for marine appliances such as mines against Iranian and Chinese cargo ships, for Western banks. Use in sea mines sinks the weak target, allowing both to eliminate the virological contagion risk and facilitating the reincarnation of the victim, that’s why it’s reasonable. First stage of rockets launched from the West Coast of the USA may also be deemed a reasonable choice with a small bird disease risk that has to be ponderated, exo-atmospheric propulsion is in this regard more reasonable (it could foster panspermia beliefs with later “findings” on asteroids… but that doesn’t really matters).

Subcritical breeder cores may be used for propulsion in private cars for instance (not rental cars because this creates an incentive for the use of crematory or mash plutonium with the “get your boost and leave the bacteriological or virological risks to other people” factor). It could be used for energy (heat…) production at home too. Or in ship propulsion, or even plane propulsion. It’s an interesting complementary currency system. CO2 emissions are needed for the environment because photosynthesis is essential for life and is endothermic (it absorbs heat). My point isn’t to replace them, but the frangibility of uranium / thorium and its incorporated energy makes it the ultimate coin.

Death of the very bad debitor is interesting for society as a whole because people who lied to banks, or who took commitments they couldn’t fit, are likely to be dangerous people, that can’t be trusted, people of bad faith. It’s natural selection. People have to deal with credit responsibly.