Correction: The USD is backed by a ponzi scheme where people who put money in have to rely on the USA being able to get more out to pay debt. If it fails at this at any point (which has nearly happened dozens of times!) then the entire thing collapses and suddenly the "world reserve currency" isn't as much "currency" as it is pieces of paper and digital ledger entries. Ironic, isn't it?

What point are you making in relation to what I said? USD can still be devalued.