Was just thinking about how much I've missed teaching the short-lived "Computer Science: The Good Parts" course that @jeffcohen and I put together back in 2018.

Having two back-to-back days where we built logic with actual hardware (breadboards, transistors, chips, etc.) one day followed by building everything again with lambda calculus the next day was an absolute mind-fuck. And in the best kind of way.

It's the kind sharp U-turn you can't pull off in almost any kind of normal course.