The first Internet message ever sent was just two letters: LO. The intended message for UCLA computer science professor Leonard Kleinrock and his team was "LOGIN", but the system crashed before the message completed. Instead, the slogan emerged as "Lo and Behold!"

In 2011, an architect in the same building where the message was completed left behind a secret message. In binary code, the same format in which the first message was sent 44 years ago, the tiles of a floor in the engineering building spell "Lo and Behold."

To talk more about this nugget of a floor plan in his building, Professor Kleinrock joins the show today.