@mhoye

As Margaret explained it to me, NASA wanted the lunar lander's actual landing to be 100% automated with no manual override. She disagreed, and insisted on implementing an override. NASA didn't like the idea but Margaret just went ahead and wrote it.

Of course, on Apollo 11's final approach, the lander was headed for a field of giant boulders. Neil Armstrong used Margaret's code to override the computer and manually divert to the actual, safer, landing point.