"BTW, when I referred to cable effects essentially all being proportional to length I should make it clear that I was referring to power wiring."Well, the only kind of effect this defense electronics dude can think of that would not be directly proportional to length, in the case of power wiring or cables conducting analog signals, would be antenna effects, that may affect pickup or radiation of RFI/EMI. And even in that case, it would seem expectable that the antenna effects of a mains fuse (if any) would be swamped by the antenna effects of the much longer associated AC wiring. Also, FWIW, this defense electronics dude cannot envision a means by which the antenna effects of a fuse (if any) might be different depending on the direction in which it is inserted.
Nice try but there is no such law as you seem to be implying.... That’s a Strawman argument by the way, I.e., a statement of "fact" intended to win the argument. Perhaps you can commiserate with the defense electronics dude.
Regards,
-- Al