From “Import This: the Tenth International Python Conference”:
"Tim [Berners-Lee] became a Python enthusiast when he tried to learn Python on a plane trip. He had already downloaded Python and its documentation on his laptop, and between takeoff and landing he was able to install Python and learn enough to do something with it, “all on one battery.” "
(Python is a programming language. Just in case anyone thinks this is an unhealthy obsession with reptiles.)