"The fact that operating system design posed some at the time tough conceptual and logical problems was hardly allowed to surface. Consequently, those problems did not get the attention they deserved, and this had far-reaching consequences: I recently read a series of articles on the Shuttle on-board software and, though President Reagan has generously offered a teacher a free ride, I tell you I am not available."

This talk was given at a conference in mid-November 1984. The flight with a teacher on board was, of course, the Challenger in January of 1986.

Of course, the disaster wasn't due to software... but still rather uncanny.