This excerpt from Chris Haufe's Fruitfulness explores how scientists make theory choices based on expected fruitfulness, prioritising the potential for generating new research and solvable problems over solely focusing on truth. Haufe argues that scientific progress is driven by adopting "fruitful" frameworks and analogies, which enable the creation of "families of solvable problems" and guide future inquiry. The text examines historical examples from science and mathematics to illustrate how the anticipation of such fruitfulness, rather than just accuracy or existing evidence, often dictates research direction. Furthermore, Haufe analyses the role of exemplars, metaphors, and aesthetic virtues like simplicity and symmetry in fostering this fruitfulness and shaping scientific understanding. Ultimately, the work suggests that epistemic warrant in science is tied to the "aptness" of a framework to facilitate further investigation, rather than solely its truth-tracking ability.
