404 and Glueball have their prognostication caps on correctly, and will be proven right, in the mid-long term.
Only the young and quite foolish count the US Dollar out, and further...commoditiy booms go bust, sooner or later.
Oil is not, by any stretch of the imagination, immune.
How do I know this?
For years and years I have traded commodities, and long before personal computers were available, I had manually drawn charts nine feet long...and I always made a profit (sometimes small, but nevertheless, a profit).
What I do not do however, is trade currency futures.
Currencies can be (and many times are) manipulated by governments, and can change direction in an instant...charts or no charts.