at the same time they are not really currencies, they are "stablecoins" on a many-times replicated digital machine playground where you can pay to add your own

at the same time they are not really currencies, they are "stablecoins" on a many-times replicated digital machine playground where you can pay to add your own machine to interact with the others, and sometimes it turns into Robot Wars and the little coins get mercilessly cut up into bits of worthless parts that are then sold for scrap in the actual currency that runs the playground