IBM Watson is a famous computer who uses artificial intelligence and machine learning to analyse complex data and produce results. One idea is that Watson could look at the mass amounts of data generated by the stock market and try to predict how stocks would rise and fall. What do you think would be the effect of a computer like Watson being 99.9% accurate in predicting how the stock market will rise or fall in the future? How would such a computer impact the stock market, investing, and society in general?