You buy gold bars at say US$1,000/oz. Paying AU$1,500 due to approx. AUD=US$0.67c exchange rate. Just say gold's price doubles (US$2,000/oz). But USD tanks to be USD=AU$1.33c. Thus, gold has doubled. This is huge, considering it's already near peak value ever, but your gold is really worth exactly the same as what you paid 4 it! Any comments?