While the dollar index may be nearing a low, this may be only because it's measured against other fiat currencies. If the 'race to the bottom' begins in earnest, the values of currencies may appear to be merely changing tit-for-tat from day to day in an apparently orderly (non-chaotic) fashion while in fact the whole currency collective is plummeting against the gold criterion. There is no reason for gold to stop at any particular price.
Also, the spot price on gold is a point of equilibrium determined by myriad influences; the gold-currencies market is a very complex system and, as in any complex system, the driving of a single element (U.S. dollar decline?) may go on for a long time before there is a sudden systemic collapse. In such a case, a new system will arise, but unfortunately for us bystanders, the period between consecutive systems is always chaotic (major wars and/or depressions are usually inter-system markers).
Sounds pretty apocalyptic, but keep in mind that the American Empire is run by very astute people who are aware of all the theories. Greenspan is no dummy; so far he has forestalled the Kondratieff Winter for years - the first time that's ever been done - but his immediate problem is that the cash he's been printing is being disproportionately absorbed into the financials and not finding its way into the general economy. But then again, Greenspan is aware of that too and is likely working on a solution.
Maybe he'll pull it off. maybe not. Nobody knows. Nobody can know. Take a position and hope to be lucky.
Incidentally - wonder why Bush invaded Iraq? It was to thwart an Opec plan to switch oil pricing from dollars to Euros; such a change at this time would have collapsed the greenback-based system and thrown us into currency chaos. But that's a tricky thing to include in one's platform; it wouldn't sway a lot of undecideds - but it was strong motivator for action. Presidents only seem stupid; in fact, they're just front men for an inexplicbly complex system. It doesn't matter who you vote for, in the end the logic of the system always sets government agenda . Gore would have invaded too, just less enthusiastically.