[baddox]

It's a bad success ratio if the 200 predictions didn't have good explanations for why they were made, because that means they are essentially 200 arbitrary predictions. In that case, the fact that one prediction came true is irrelevant.

To put it another way: if you're making arbitrary predictions without explanations, then you increase the likelihood of a prediction coming true by increasing the number of predictions you make. But clearly we shouldn't value predictors simply based on the number of predictions they make.