Banks will be fine. Bankers have reason to fear. : Artificial intelligence and machine learning have already made their imprint on investment banks and other financial firms. The main applications currently revolve around trading, but people like Alexander Fleiss believe the technologies will eventually be adopted at every rung, replacing the need for bank employees in ways that people have yet to imagine. Fleiss is the CEO of Rebellion Research, a New York hedge fund and robo adviser that relies on AI and machine learning, as well as a guest lecturer at several universities, including Yale School of Management.