The author did not vary the number of messages. The author sent the same number of messages in both cases. Facebook's "Full Conversation" view automatically col

The author did not vary the number of messages. The author sent the same number of messages in both cases. Facebook's "Full Conversation" view automatically collapses multiple messages together, but the author was explicit in that they sent the messages in exactly the same fashion: "As well, there have been a few comments on how each messaged as typed. Please note that both Facebook Chat and Facebook Full Conversation allow you to send a new message on pressing enter, which I did in both cases. The input was identical, the visual output was not."