@holmz Not sure what you're saying. Are saying something like,
(a) "There was such a thing as "materials science" back then?
That's too obvious a point for me to assume you're making.
The other option is that you're implying something like,
(b) "Not a lot of progress has been made in materials science as it applies to audio."
Do you mean (a) or (b) or something I'm missing? Thank you.