Some of the more technical moments of this book review can be a bit confusing if you're not an econ buff (I am certainly not), but Bob Solow's writing is fantastic and I would like to give him a hug for being awesome:
"Greenspan does not seriously discuss the goals and the limitations of reasoning about the economy. He talks some about his early life as a forecaster, and he is clear that economic policy has to be based on forecasts: policies undertaken now will have effects in the future, and sensible economic policy usually has long-run goals anyway. But the reader of this book will learn little or nothing about the process of forecasting other than that it is difficult and that the results are always uncertain. Duh."