 Mayo-Wilson et al. (2011, 2013) likewise defend a surprising thesis, which supports central claims from social epistemology espoused by Goldman (1999). They use epistemic network models, to support the so called “independence thesis”—that rational groups may be composed of irrational individuals, and rational individuals may constitute irrational groups. For instance, consider a learner who tests some preferred theory. Alone, she may fail to test other successful theories, but a community representing a full diversity of preferred theories will be expected to learn which is best.