re: $28 oil prediction & gold....===
I'd imagine a lot of miners' input costs are priced in US$ so there is some saving there.
Others such as BSG which is in Mexico, would have all their costs in Mex peso which will not move far from the US$ so the only loss will be in the repatriation of dividends.
And all the shorts are short in US$ so it is that price which may force their hand. I'm aware that "they" have been forcasting the demise of the big banks at every price levil since $300 and it hasn't happened yet. Can't rule it out but!