ABSTRACT
Social reality, like most realities, is immensely complex. Social researchers endlessly confront the bearing of this complexity on their work, whether they are accounting for the behavior of a group or searching statistically for relations among qualities, or constructs based on qualities, that appear in a population of entities. More complex social phenomena are composed of more practices, arrangements, and relations than simpler ones are. Two complex fields are involved when complex social changes are the object of explanation: the complexity of the changes that make up such a change and the complexity of the entire causal nexus that leads to it. Overviews are required to grasp the nexuses of action chains and material and other events and processes that lead to the complex or large changes to be explained. For this task, it can be useful to employ general concepts of occurrences, instances of which can embrace myriads of particular entities, events, and processes.
