4D
I agree partially re demand - as the economy tanks, demand down, but the wild card remains economies in China and India, regardless of demand destruction in Europe and NA they can more than make it up with continued demand growth. And despite drilling off the US coasts supplies will continue to dwindle. (go NG)
As to your point of the USD, maybe. But I am afraid that its value is headed further south - to the point no one will want to prop it or hold it.
Thats when the turbulence really hits.