@brennen Thanks for these thoughtful and cogent responses. Slightly unrelated—one thing that kind of forces me to answer questions on StackOverflow is questions from students whose professors are obviously awful and who just need one or four ideas presented to them (or two or six wrong ideas removed) for them to make rapid strides. There are people without colleagues to bounce ideas off of, and when they show up on SO, I'm moved by their plight to try and help—sympathy miseducation's victims 🙃