If the societies simply used government controlled fiat...perhaps a powerful AI could create money that could survive 55 million years without a decentralized revolution. (hivelink)
Or maybe they just backed their currencies with gold. That could survive millions of years with modest inflation due to gold mining.
(hivelink)- Have the aliens realized all currencies in the future will be backed by bitcoin? tid:3316 (1) (hivelink)
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