The experimental psychology literature suggests that, all other things being equal, messages received in greater volume and from more sources will be more persuasive. Quantity does indeed have a quality all its own. High volume can deliver other benefits that are relevant in the Russian propaganda context. First, high volume can consume the attention and other available bandwidth of potential audiences, drowning out competing messages. Second, high volume can overwhelm competing messages in a flood of disagreement. Third, multiple channels increase the chances that target audiences are exposed to the message. Fourth, receiving a message via multiple modes and from multiple sources increases the message’s perceived credibility, especially if a disseminating source is one with which an audience member identifies.

Might explain all the Donald leaks…