Constructive empiricism is a philosophical view about science, primarily associated with the work of Bas van Fraassen. It suggests that the aim of scientific theories is not to provide true descriptions of the world, but rather to offer useful models that can explain and predict observable phenomena. According to this view, a theory is considered empirically adequate if it accurately describes the observable aspects of the world, regardless of whether its unobservable components are true. This perspective contrasts with scientific realism, which holds that scientific theories aim to provide a true account of both observable and unobservable entities. Constructive empiricism emphasizes the importance of empirical evidence and suggests that belief in unobservable entities should be cautious and based on their usefulness in explaining observations.