This is almost certainly a reference to Erlang: The Movie [1] which is the most glorious 11 minutes of some programmers explaining how their creation works you will ever see. In the video, the three call each other to demonstrate what happens real-time in an Erlang system. For the impatient, the telephone conversation starts at about minute 3. [1]: ▶ this video
in “Why Erlang?” · View on HN