In the Miscellany thread "Good old guy" is the following:

J.W.v.Goethe : Roughly translated:
"He who speaks no foreign language,
does not know his mother tongue"

and it seems appropriate to this fascinating discussion, too.
As we progress and learn we absorb the "jargon" of various fields into the everyday language. We begin to understand the applications that come to us from the adventurers who are now investigating new phenomena.
The names of all those now rarified things will become part of the language as our children and children's children become as familiar with these now-esoteric fields as we are with how to drive a car.