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My dictionary says this about "protocol":

> [In computing:] a set of rules governing the exchange or transmission of data between devices.

In the article, pg says this:

> The reason is that it's a new messaging protocol, where you don't specify the recipients.

It seems obvious to me what pg is getting at, even though the other protocols he mentioned are all formal while Twitter's is not.






It seems like that could apply to many other ways of messaging though, not all of them online. I'm not sure the "new" bit is really correct. Perhaps the potential scale or reach of a message is what matters.



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