Apologies for the self-promotion, but this video just crossed my path today. I didn't know it was available. It's a (long) lecture I gave at UNSW a couple of years ago to a software engineering class on the subject of what software engineering actually _is_. It captures how I think about software pretty well.
10 minutes in. Only and thoroughly enjoying it
I had heard the chalk story but only as a joke about an anonymous expert. Amazing!