 Agents have beliefs about which option is preferable, and change these beliefs in light of the evidence they gather from their actions. In addition, they also update on evidence gathered by neighbors in the network, typically using some version of Bayes’ rule. It is in this sense that agents are part of an epistemic community. Figure 2 shows what this might look like. The numbers next to each agent represent their degree of belief in some proposition like “vaccines are safe”. The black agents think this is more likely than not. As this model progresses these agents gather data, which increases their neighbors’ degrees of belief in turn.