At some point, the dollar has to give. You can't just keep printing money, and monetizing debt, and buying bonds, without the dollar imploding.
Most paper money initially existed as a substitute for gold. That's what gave it value. But right now what gives a currency value is other currency. Most countries hold reserves and the reserves are other currencies. If you are a backing up the euro with the dollar, what's backing up the dollar? I don't think it is going to go to a point where all you have is coins and bars of gold, but I do think that we are going to have to go back to a monetary system based in gold, not based on paper.
The fiat-based system has produced enormous global imbalances that are straining the global economy. Ultimately, I think the whole thing gives way and what returns is what existed prior to the dollar standard, and that is a global gold standard, which is the only thing that really works.
