She told me about a singing cactus: Counterintuitive concepts are more accurately attributed to their speakers than ordinary concepts.

Communication is central to human life, yet it leaves humans vulnerable to misinformation and manipulation. Humans have therefore evolved a suite of psychological mechanisms for the evaluation of speakers and their messages. Here, we test a key hypothesized function of these "epistemic vigilance" mechanisms: the selective remembering of links between speakers and messages that are inconsistent with preexisting beliefs. Across four experiments, participants (