I graduated from college and started working in Aerospace Engineering just as the WWII generation was starting to retire. I had the privilege of being mentored by engineers that started working just before and after WWII. This is the generation that designed and developed moon rockets, supersonic jet fighters, television and hifi. They did it all using slide rules and look up tables. It was an age of soulful design. On paper, vinyl playback looks bad. On paper, vacuum tubes look bad; but separately and even better together they make music magic. There is a lot to be said for Computer Aided Design and increased engineering productivity; but there is something about the Art of Engineering in vinyl records and the whole recording chain of the past, something remarkable that still amazes us in the 21st Century.