Dan Sperber (2013) Speakers are honest because hearers are vigilant: Reply to Kourken Michaelian. In Episteme, 10, 1, 61–71

Abstract: In “The evolution of testimony: Receiver vigilance, speaker honesty, and the reliability of communication,” Kourken Michaelian questions the basic tenets of our article “Epistemic vigilance” (Sperber et al. 2010). Here I defend against Michaelian’s criticisms the view that epistemic vigilance plays a major role in explaining the evolutionary stability of communication and that the honesty of speakers and the reliability of their testimony are, to a large extent, an effect of hearers’ vigilance.