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I believe it is Chinese Yuan the next currency to use when USD gets weakening. Even now with war and other problems the economy of USA is greatly affected. In recent statistics it is China which is gonna take the position of USA soon. If such scenario takes place there'll be war, and by then everything that is digitally invested will gain importance.
Man, am I getting old already? I am used to USD and I am used to look at US as a most dominant and powerful country but now I must say I need re-evaluate such thoughts. China has been growing a lot lately. That is why I agree with you, it may came later that CNY must be the next currency to use.