[abecedarius]

That would be a marvelous project to see.

I've wondered something myself ever since since reading Feynman's popular book QED. That book is clear and illuminating, no question, but in the end it doesn't quite deliver an understanding that I could program. Of course I could code up his explanations of reflection and diffraction, and so on. But there's a gap between those and what he was proposing to show us: a grasp of what the theory calculates, leaving out all the fancy techniques needed for practical calculations. If I'd gotten that, I would be able to code QED, setting aside all efficiency and numerical stability. To get there, if I try to bridge the gap from other sources it looks like years of work, because none of those sources reach anywhere near this end of the chasm. Why not attempt a "QED for programmers" as a literate program or explorable explanation? Maybe I will someday, but I have a lot of sloth to overcome. Good luck (and if you ever feel like chatting more, feel free to bug me).