To avoid an outcome or exploit an outcome. To do either, prediction must be followed by preparation. Prediction without preparation is just curiosity. Predicting that Lucky Dancer will run fastest is only valuable when you have time to exploit the outcome by placing a bet at the racetrack. Conversely, if you are standing in the path of the galloping horse, you use the same prediction to avoid the outcome of being trampled, and you get out of the way.
