Look , it's this simple (note.. I have been buying gold since 600/oz)
US is PRINTING money secretly. They used to have to publish what was called M3 ( the amount of new currency produced). About 4 years ago (GULF WAR 2??? coincidence?) they stopped.
Now they have to pay for War et all on a decreasing tax base. They have reduced interest rates as much as possible, still cannot support dollar.
Dollar is soon to be worthless internationally. Not being alarmist, but simply you need to understand what has occurred. Expect HKD to depart peg within 24 months.