rel: Stability of Concepts Stability of Concepts You Speak To
Commensurability is a concept in the philosophy of science whereby scientific theories are said to be “commensurable” if scientists can discuss the theories using a shared nomenclature that allows direct comparison of them to determine which one is more valid or useful.
An incommensurable theory would have a starkly contrasting conceptual framework, which doesn’t allow direct comparison of theories or to cite evidence favoring one theory to another.