erspectival realism is best described as a cluster of views in philosophy of science committed to both the existence of mind-independent things and to the historical and cultural situatedness of scientific knowledge (Massimi 2018a). The first is the realist commitment, whilst the latter is the perspectivalist commitment. Perspectival realists react against both objective realism and social constructivism. Perspectival realists take issue with the objective realists’ tendency to formulate complete and objectively true images of the world. For example, for the objectivist realist, scientific claims such as “HIV is a virus that damages the immune system,” “Whales are mammals,” or “The electron has spin half” are objectively true claims about the mind-independent world.