Good Lord. What on Earth are these people talking about? The Exciting Part uses "Logic By Machine" (1965) as the public-domain video footage, courtesy of the Prelinger Archive at archive.org/details/prelinger
The source reel is an interesting insight into math professors from Columbia University and Bell Laboratories as they talk about developing systems of problem-solving that served as the foundation of early programming.
Once again, a basic musical idea was roughed out using Apple GarageBand and a disc of AMG loops and beats, and then imported into iMovie HD for video synchronization. Lots of continued tweaks and layering (about 15 hours' worth) hammered the piece into finished form.
This piece is dedicated to Seth Lyon 1961-2010