My point has not changed in any way. It is that you do not need to know anything about length or cross section to know about resistivity of a material. Your original point about choosing silver over copper was simply related to the resistivity of the material (ie silver is more conductive), but you were utterly unable to expand on the matter.

You twist and turn and flail about, accusing others of knowing nothing about things that you know nothing about.

And by the way, (rho*L)/A=R