Paul Craig Roberts: The Coming End of the American Superpower
The dollar's sharp decline and projections of continuing trade and budgetary red ink are undermining the dollar's role as reserve currency. A number of central banks have announced that they will be diversifying their currency holdings and will not be buying dollars at the same rate as in the past.
This will put more pressure on the dollar. At some point the flight will begin. Instead of buying fewer dollars, central banks will sell dollars hoping to get out before the dollar hits bottom.
Suddenly, the advantage of being the reserve currency becomes a nightmare as the world's accumulations of dollars are brought to market. An enormous supply and weak demand mean a very low exchange rate for the once almighty US dollar.