 In his 2016 article, Liao expands on the results of this previous collaborative research and paper. He claims that the empirical studies show that genre conventions limit the types of propositions that can appear within the context of a work, so the fictionality puzzle arises due to genre convention-discordant propositions (2016; 474). He adds that each genre convention is associated with different expectations as to what kind of propositions can appear within this genre (2016: 471). Therefore, the imaginability puzzle arises because we find it comparatively difficult to imagine genre expectation-discordant propositions. For instance, in a realistic fiction, we expect all the propositions to be in compliance with our real-world moral norms. This expectation does not apply if the work is an Aztec myth or a Greek tragedy.