Robots could soon be hiring and firing staff at the world's largest hedge fund under secret plans drawn up to improve efficiency. A team of engineers at US-based Bridgewater Associates is reportedly developing artificial intelligence which can run the firm without emotions getting in the way. Billionaire founder Ray Dalio is seeking to create a new business model where most employees are programmers and decisions are made by a computer. He appointed a clandestine team, called the Systemised Intelligence Lab, to work on the project early in 2015. It is overseen by David Ferruci, a renowned developer who created IBM's Watson supercomputer.