> MuskCoin is required in payment for cargo capacity on Earth-to-Mars shipping, or for purchasing real estate on Mars. It has a floating terrestrial exchange ra

> MuskCoin is required in payment for cargo capacity on Earth-to-Mars shipping, or for purchasing real estate on Mars. It has a floating terrestrial exchange rate: the idea is that it's used for mediating interplanetary exchanges. That sounds like the currency in Artemis by Andy Weir (of The Martian fame) which used "slugs" as a currency on Luna: > “It’s short for soft-landed grams. S-L-G. Slug. One slug gets one gram of cargo delivered from Earth to Artemis, courtesy of KSC.” “It’s technically not a currency,” Trond said from the credenza. “We’re not a country; we can’t have a currency. Slugs are pre-purchased service credit from KSC. You pay dollars, euros, yen, whatever, and in exchange you get a mass allowance for shipment to Artemis. You don’t have to use it all at once, so they keep track of your balance.” ... “It ended up being a handy unit for trade. So KSC is functioning as a bank. You’d never get away with that on Earth, but this isn’t Earth.”