Signalids

Signalids are a hypothetical class of entities proposed in some theoretical frameworks within physics and philosophy of science. The term refers to entities that are not directly observable but are inferred to exist because they are considered necessary to explain the behavior of observable phenomena. The concept of signalids is often invoked in discussions about causation, scientific explanation, and the nature of reality itself. They are distinct from unobservable entities like elementary particles, which are part of established scientific theories and have observable consequences. Instead, signalids are more abstract and are posited as potential intermediaries or fundamental components that facilitate interactions or processes that are otherwise difficult to account for. The existence and nature of signalids remain speculative and are not part of mainstream scientific consensus. Their utility lies in thought experiments and philosophical debates concerning the limits of empirical verification and the construction of scientific models. The term itself suggests entities that carry or mediate signals, implying a role in communication or influence within a system.