Fair point, however, because economic predictions are rarely 100% accurate, should we discredit all…

They discredit themselves. They are nowhere near 100%, so, as I asked, what level of accuracy would be sufficient? Would you accept a standard deviation of 50% of the mean, as per the exchanges? I’m not saying that everything should be ignored, just that economic modeling is not science, it is educating guessing. Their guesses are only as good as their assumptions and it is their assumptions that are the only interesting part of their predictions.