I seldom fail to find some value. I haven't watched this yet, but it's a time thing, not because I don't plan on watching this. I learned timing diagrams eons ago, but just like some of Dave's other fundamentals videos, a fresh take on it will likely result in one or more eureka moments.
My other hobby is model trains. I was recently at a show that had various presentations, one of the first ones was on how to model a locomotive that our shared interest railroad acquired in 1974. I model the 19050's. Still I sat through this presentation because, as I remarked to the presenter and the show organizer afterwards, even though I will never build this exact locomotive, there is always something to learn that you can apply to ANY model. I happen to be in HO, the most popular scale, but I see it in model magazines all the time, people who model in one scale complaining that there is never enough material in their scale. Short-sighted, I say. Just because the example was built to one size does NOT mean you can't use the same methods to make it in any size you want.
Too many people with tunnel vision. Think outside the box, and also don't assume you know everything about a subject. I may be on the older side, but I am always learning. Yes, you have to draw the line somewhere, I am unlikely to watch a video telling me how to calculate series and parallel resistors, or how to read the color code on resistors (although if someone has a way to actually see the muted colors where so many look alike on many modern resistors, I'm all ears - any more I just measure them because it seems brown, black, red, and sometimes orange all look the same these days - and I am NOT colorblind).