Just as forerunners of man may have needed to communicate the location of prey to the rest of the troupe, so the agents need to know things from the other predators, like their current position relative to the grid, position relative to the prey and intended direction of movement. With a common surroundings, a common goal, and the need to talk to achieve that goal the agents begin a long process of trial and error. The researchers found that as the size of the binary languages increases, the performance of the predators improves. Using this observation, the researchers developed a method for incrementally increasing the language size. This growth means broad searches for the prey rapidly became very specific, resulting in far more efficient hunting.
Human language scales up in a similar way.
I'll go towards it, while you three creep round from behind. Finally I'll scare it straight into your spears. And that's not all. Not only do the predator agents evolve a language and catch the prey, they eventually do better than their human programmers. This method of letting the program in part program itself, is better known as evolutionary computing.