Interesting-sounding headline AND a seemingly custom-designed art piece to go with the story? To the top of HN we go, regardless of whether the story itself is valuable or not. (There is a lesson to be learned here for spammers, err, I mean marketing people.)<p>This particular story can be simplified to something that isn&#x27;t a particularly new or deep insight: E-mail is asynchronous and instant messages are not.