Generality, genericity and subjective predicates: What propositional attitude verbs, alien viruses, and COVID can tell us

In uttering a subjective opinion like Donuts are tasty, is a speaker expressing her own opinion or also making a generalization about people-in-general? While researchers largely agree that generic readings of subjective predicates exist, there is no consensus on how central genericity is for theories of subjective meaning. We report a psycholinguistic study that tests what influences the level of prevalence that comprehenders attribute to opinions, expressed with subjective predicates, about unfamiliar information. Specifically, if you overhear an alien expressing an opinion about an unfamiliar virus (e.g. The zorgavirus is dangerous), how many other aliens do you think share this alien's opinion? We find that the perceived generalizability of subjective predicates is modulated by the presence/absence of embedding under propositional attitude verbs (whether the speaker is explicitly mentioned with I think/consider) and by participants' extra-linguistic attitudes, namely their anxiety levels about COVID. This work uncovers a new link between subjective predicates and humans’ egocentric cognitive biases.