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Today we're quite happy with paper money. |
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Even more amazingly, we're happy with money we can't even see. |
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Millions of dollars pass through this woman's hands every day, |
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or rather, across her computer screen. |
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She's a foreign exchange dealer, whose business is literally buying and selling money. |
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Each day around $3 trillion changes hands in transactions like these around the world. |
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And it's all built on trust. |
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It has to be when you can't even touch the stuff. |
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