poker is one of the most important cheat codes in trading. greg jensen, co-cio of the world's largest hedge fund, won a world series of poker bracelet. his edge at the table came from the machines: "I had an edge for a while, particularly when the machines had learned more about poker than humans had and many humans hadn't caught up" "this is a bold statement, but there was definitely a time when I think I was in the top couple hundred people at poker" he says his edge came from noticing something almost nobody at the table knew: "machines got better at poker than people and most people didn't know it. and that was a huge opportunity" "people have played poker for hundreds of years... people had no idea what they were doing"