 For example, this social turn in epistemology has sparked research into cognitive mechanisms for epistemic vigilance, especially those that monitor and regulate communication (Sperber, Clément, et al. 2010; Mercier 2020). It has also directed attention towards many different aspects of epistemic norms, those informal rules of conduct that regulate how people handle information, assess evidence of various kinds, make public assertions (Kneer 2021), etc. Epistemic norms also underpin social trust, prescribing how one ought to assign credence to testimony given by people who bear different social identities, belong to different groups, and are associated with different institutions and forms of expertise (Lackey 2008; Goldberg 2010; Littlejohn &amp; Turri 2014; Henderson 2020). An especially fruitful strand of this research has examined variation in such norms, and in the ways in which they can be unfair to members of marginalized cultural groups, and thus contribute to a myriad of forms of epistemic injustice (Fricker 2007; Medina 2013; Dotson 2014). Other research at the intersection of social epistemology and political philosophy (Edenberg &amp; Hannon 2021) has looked at the way certain configurations of epistemic norms, together with the operation of selective learning heuristics like the my-side bias and tribal social instincts mentioned in  Section 3.3,  can create filter bubbles and echo chambers (E. Anderson 2021; Nguyen 2020), contribute to the spread of misinformation (O’Connor &amp; Weatherall 2019), and sustain extreme forms of polarization and partisanship (Rini 2017, also see Raymond, Kelly, &amp; Hennes forthcoming). Work on the character of scientific inquiry has also looked at the role of epistemic norms in the production of knowledge by scientific communities (Kuhn 1962; Barnes et al. 1996; Vaesen 2021), including norms that specify what counts as acceptable evidence (Longino 1990) and norms that prescribe that empirical evidence be accorded a unique significance in the construction and evaluation of scientific argumentation (Strevens 2020).