Predictions

James Taranto considers some predictions:

there are no signs of a dramatic rebound for the party, and the chance of Republicans winning control of either chamber in the 2010 midterm elections is zero. Not "close to zero." Not "slight" or "small." Zero.

Making predictions is risky, which is why I try to avoid them. However, when someone makes a prediction that turns out correctly, that person deserves to be taken more seriously in the future. The correct prediction shows that they have understanding. Obviously when a person's predictions are completely wrong, that person should lose credibility because the failed prediction shows that their understanding of the situation is flawed.