The Prediction Engine lets you predict things. This could be a roulette table, or the direction of stock prices, or the outcome of a lawsuit.
The underlying technology takes in a list of previous binary data (eg, 10001101) and does a calculation to determine whether the next digit will be 0 or 1.
The chance of it being correct varies with the field. For shares, this is about 20% annually. For roulette, 7-17%. For law, about 14%. Elections, unknown, but likely 10%.
To clarify: A chance of 10% means that instead of being correct 5 out of 10 times (50/50), it's correct 6 out of 10 times (60/40).