@trixiefire Let's say the EUR/USD ratio is 1.000.
If I have 100 EUR and I buy gold on US exchange for USD. I now have 100 USD worth of gold.
A year later EUR/USD is at 1.1000.
Let's say gold price hasn't changed for simplicity.
If I sell my gold now, I'll get 100 USD back, but when I want to...