> Anyways, now I’m a full-time lecturer teaching undergraduate CS courses (long story)

I would love to hear that story if you're willing to tell it.

It sounds like you're a great lecturer, though, giving the students exactly the sort of stuff they need. I remember a university lecturer explaining to us that "JIT" just meant that Java loaded the class files when it needed them, rather than loading them all at the start, so your lesson sounds like a far cry from those days!