Does this chill autumn blast signal an end to the growth cycle?

It is the weekend of a Group of 20 meeting – the finance ministers and central bank governors of what are, more or less, the 20 largest economies in the world gathering in Ankara, Turkey, to debate what they might do about the world economy. Had they been meeting a few weeks ago they might be preening themselves over how well they were doing: decent growth in the United States and UK, signs of a recovery in most of Europe, and solid growth in the two largest Bric (Brazil, Russia, India and