[motters]

I tend to agree. One of the difficult problems with using AI for market predictions is that the market includes human psychology in the loop, which is not always rational and there are factors which are difficult to include within the model. When people are making buying or selling decisions they're often factoring in imponderables such as gossip, personal prejudices and vague hunches. These hard to simulate decision processes are then greatly amplified by positive feedback - which includes automated trading systems.