This was just an example that trade between countries like Russia and China often happen in dollars (or sometimes Euros). Not yen or rubles. You think they wou

This was just an example that trade between countries like Russia and China often happen in dollars (or sometimes Euros). Not yen or rubles. You think they would use bitcoin/eth instead? I don't fully understand banking systems, but if China buys something from Russia in dollars. They are not paying with truck loads of cash. They might pay with IOY in a Chinese bank. But Chinese banks might not want that liability (buying dollars could be expensive in the future; and certainly Russians won't trust a Chinese bank. They are probably moving dollars between a US account belonging to a Russian bank, and US account belonging to Chinese bank. Moving large amounts of dollars (or euros) by other means is very hard. Gold, bitcoin, eth, etc. are all more volatile than dollars (or euros), and harder to move.