The United States Geological Survey estimates all the gold discovered so far in the history of humankind would fit in a cube with sides about 25 yards across.

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Pro and Con: Gold Standard

Some believe the United States should return to a gold standard because gold retains a stable value that reduces the risk of economic crises, limits government power, would reduce the US trade deficit, and could prevent unnecessary wars by limiting defense spending, while others believe that gold is volatile and would destabilize the economy while disallowing government economic and military intervention, and increasing environmental and cultural harms via mining.