Well, that's delayed me by 20 minutes! I'm not sure whether it's the content (I knew some but not all of that), the presentation style (I've always liked the us

Well, that's delayed me by 20 minutes! I'm not sure whether it's the content (I knew some but not all of that), the presentation style (I've always liked the use of analogy in teaching), or mere nostalgia that made it so engaging, but I found it impossible to stop watching that, and now I want to know more - particularly to see if those developments were applied to the passenger carrying vehicles of today. I wonder if a video made today would be as straightforward in presentation, and also how it would look to a 45 year old in 2062? (coincidentally this was made in the year of my birth)