Abstract
Developments in the Wheeler-Feynman absorber theory are surveyed. The action on the emitter of radiation by complete, incomplete, time-symmetric and time-asymmetric absorbers is described in physical terms. Some discussion is given of the prevailing divergent views of the inter-relationship between absorber theory and the arrow of time. The application of absorber theory to general fields is reviewed briefly. Some experiments, actual and proposed, to detect the advanced effects predicted by absorber theory for an imperfect universe are discussed.