I've just read an excellent book by Robert Harris called the Fear Index. In the book a computer scientist called Dr Alex Hoffmann has developed a revolutionary form of artificial intelligence that tracks human emotions via internet news feeds , enabling it to predict movements in the financial markets with uncanny accuracy. In the story his hedge fund, based in Geneva, makes billions. The book is listed as a work of fiction but the technology used in it is not. Predictive Analytics Software that analyses how one metric affects and relates to another is available today and being used in many large organisations.