Astrologers and economists operate on the same principle. They utter prophecies so vague that any event can substantiate them: ‘In the coming weeks you will experience sadness,’ or ‘in the medium term, the pressure on the dollar will increase.’ But what is the medium term? What will cause the dollar to depreciate? And, depreciation measured against what – gold, yen, pesos, wheat, residential property in Manhattan, the average price of a hot dog?
