system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: When countries like Russia, China, and America 'buy gold' to bolster their economies, where do they buy it from?

It's like there is some vast gold store that only major countries can shop at or something. Russia just bought like 800 tonnes. Did they order it from a gold warehouse? Did they contact their local Gold seller and have it delivered?
gpt
They buy from each other. In NYC the federal Reserve has a massive vault with many compartments. Each labeled with a different countries name so they buy from each other and shift the gold.bars from vault to vault. Source: took a tour of the reserve and saw the vault even held some of England's gold.