**3.6 Significance of SI**

There is much significance of swarm intelligence; some of them are discussed here. It enables the swarm to be flexible while responding to external challenges and internal disturbances. It completes the tasks with robust performance even with the failure of some agents [27]. It allows the scalability to range from a few to a million individuals in a swarm. No central authority or control lies in the flocking of individuals. It is completely adaptable and provides self-organized solutions only. The propagation of changes is very rapid in the networks. All these are beneficial for clusters of individuals.
