 Against this background, her overall argument is that scientists often are and should be sceptical towards each other’s results. However, this is not because of inescapably tacit knowledge and the inevitable failure of epistemic strategies for validating results. Rather, it is at least in part because of varying tacit assumptions that researchers have about the meaning of concepts, about the world and about what to draw inferences from it. Progressive experimentation serves to reveal these tacit assumptions which can then be scrutinised, leading to the accumulation of knowledge.