I was really impressed with the inguinity of the people doing this work. They came up with a machine to keep track of sound samples, the blue-sky research on computer graphics was downright impressive, but one of the things that most stayed with me was how they did in-camera special effects.
Camera tracking was something that basically had to be invented on the spot at that point, at least for use with the miniature shots they did.
If we ever see another open source video editor, my suggestion would be to name it Nostalgia. Even though in my case, as a guy in his mid-30's, it's a hankering for an era just 'before' my time.