The euro, worth 83 cents in the early George W. Bush years, is at $1.45. The British pound is back up over $2, the highest level since the Carter era. The Canadian dollar, which used to be worth 65 cents, is worth more than the U.S. dollar for the first time in half a century. Oil is over $90 a barrel. Gold, down to $260 an ounce not so long ago, has hit $800. Have gold, silver, oil, the euro, the pound and the Canadian dollar all suddenly soared in value in just a few years? Nope. The dollar has...