Each month, the Federal Reserve releases its latest minutes of its last meeting along with its projections of economic activity (www.federalreserve.gov). The minutes just released indicate that its prior forecasts have been tweaked a bit, with update projections for unemployment over the next two years, GDP growth, and inflation. As new data become available, the hundreds of economists at the Fed revise and recalculate numbers, which means that any forecast rarely lasts more than a few months.