Feedback.

Well, I got the feedback from my lecture. There were 80 computers attending, which probably means 90-100 people. Of those, 31 chose to fill out a post-lecture response questionnaire. Of those 31, I received 14 "excellent", 12 "very good", 3 "good", 1 "fair" and 1 "poor". Overall, about an A-/B+, I think. Which is what my GPA has been since elementary school.

The principal complaint was that I spent too much time on theory, and not enough on the particular application I was reviewing. Which is a fine complaint to get. I'm an academic. Being able to produce theory is important to me, and I feel strongly that if you can't demonstrate your ability to do the theory, you don't really have any business doing the application. Theory matters.

That said, I didn't actually present any theory. I described the theory. That's all. To present theory would have taken a semester, of course. But I did get specific positive feedback on the background theory as well, and from people who are responsible for major engineering initiatives in my hospital system. So that's exciting. And my boss was proud of me for the outcome.