My view about trading is that it is similar to the North America Gold Rush, abundant and not reguled at the beginning, with huge furtune built in a short time. But when more and more people participating the resources decrease, the regulation increase, the competition increase, the need of modern technology ask for bigger investments (as artificial intelligence). In the future only big players could make profit with trading, considering also that socially and politically speculation is not well considered, pushing the laws to be more and more restrictive.