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, the focus should be on what can be empirically verified rather than on the unobservable aspects of reality. This perspective contrasts with scientific realism, which holds that scientific theories aim to describe the world as it truly is, including unobservable entities. Constructive Empiricism emphasizes that belief in the existence of unobservable things, like atoms or electrons, should be based on their usefulness in explaining observations rather than on a commitment to their actual existence.