 Hong and Page score individuals on a given landscape in terms of the average height they reach starting from each of the 2000 points. But their real target is the value of diversity in groups. With that in mind, they compare the performance of (a) groups composed of the 9 individuals with highest-scoring heuristics on a given landscape with (b) groups composed of 9 individuals with random heuristics on that landscape. In each case groups function together in what has been termed a “relay”. For each point on the 2000-point landscape, the first individual of the group finds his highest reachable value. The next individual of the group starts from there, and so forth, circling through the individuals until a point is reached at which none can achieve a higher value. The score for the group as a whole is the average of values achieved in such a way across all of the 2000 points