Abstract
This paper criticises the Waltonian fiction view for providing a misleading role of imagination in scientific modelling, and for failing to provide an adequate account of the epistemology of modelling. Imagination cannot be simultaneously constrained by the model descriptions and relevant for modelling epistemology. Given that the relevant inferences must be made in terms of publicly available model descriptions, and the laws and general principles must be included in the model descriptions, there can be no relevant role for the so-called indirect principles of generation in modelling epistemology.
