In science, a prediction can be understood in two ways: as the operation or activity used to formulate a description of a material fact, or as the description itself (the sentence).
At times, some philosophers and epistemologists refer to scientific prediction, perhaps influenced by Hempel-like reasoning or arguments made to obtain a predictive conclusion.
Prediction usually refers to a statement—a descriptive sentence about an event, often of a low level of generality. A characteristic of all scientific prediction is that we do not yet know the cognitive status of the utterance, or whether it is a hypothesis whose truth value is unknown.
It is a mistake to identify prediction solely with the description of a future event, since not all predictions...