DSGE models used by central banks for forecasting don't predict inflation and GDP growth well. Even though other types of forecasts also struggle, the DSGE model's performance is not impressive. This is similar to how all macroeconomic forecasts have been less accurate since the Great Moderation. The DSGE model suggests that inflation deviations are hard to predict, especially with strong monetary policy. Therefore, judging models based on their forecasting ability during the Great Moderation may not be the best approach.