When the EUR/USD graph grow up exist 3 possibilities: or the USD grow up or the EUR down or both together. In EUR/USD, you need study two currencyies, EUR and USD, because these twos currencies are 'very' volatiles.
When you see the graph of the "GOOGL/USD" oscillating, again, it's necessary make two analyses. One for the USD and another for the stock.
So, I guess this problem would be resolved if all actives would be like: EUR/GLD, USD/GLD, GOOG/GLD, OIL/GLD, ETF/GLD, XXX/GLD. Because the gold is the unique currency that not variable a long of time.
1 oz of GLD of 20 years ago is equal to 1 oz of GLD today.
But, 1 USD of 20 year ago is not equal to 1 USD today.
All currencies depreciated are depreciated by inflation and manipulated by government. The gold not.
Moreover, if the price of the GOOG/GLD (Gooogle/Gold) varies, you will have certain that the variation is due to Google and not to Gold.
Do you understand?
So, tell me what you think abou!