It is widely argued that engaging with a fiction involves imagining its content. Yet, the concept of the imagination is rarely clarified, and it is often used incorrectly by theorists. A good example, this paper argues, is Gregory Currie‘s simulation theory, and its claim that imagining the content of a fiction consists of simulating ‘the beliefs I would acquire if I took the work I am engaged with for fact rather than fiction’. The paper, following the philosopher Alan R. White, argues instead that imagining consists of thoughts about the possible.