According to convergence theory, crowd behavior arises from the gathering together of a number of people' who share the same needs, impulses, dislikes, and purposes. The people attending a Baptist revival service " share a number of characteristics which from those of a racetrack crowd. Why are motorcycle rallies and rock festivals so much more prone to noisy disorders than are county fairs? The people attending a- rural county fair are broadly distributed by age, occupation,and social class. Most are local people, with strong ties to local groups and values, with a highly supportive attitude toward local authorities. By contrast, the motorcycle rally or rock festival attracts quite different crowd.Most members are young and single. Most are outsiders, with no local' ties or special concern for local feelings or property. Many in attendance are alienated from the dominant culture, and this alienation has been' intensified by the customary local opposition to the holding of the rally or festival . Small wonder that" disorder" IS more common than at county fairs. Many more illustrations of convergence theory could be cited, showing how the gathering together of like-minded people is a major factor. in crowd behavior.