What is the science behind audiophile fuses?

@noromance If you are referring to the Pacific show in Seattle. He was there I am not sure if it was his rig or not. I do remember not wanting to stay in the room tho. It did not sound good at all. Honestly I don't think there was any attempt to display the system. I am honestly not sure what the point of his room was.

I spent the weekend at that show and went back into most rooms a couple times as some switched up the gear. Not his tho it was almost creepy and I'm not sure why. I was actually interested in talking to him a bit, before I went in his room.

It’s pretty easy a buzz 🐝 fuse is a steel zinc combo around 17 on the metals conductivity index.  Copper , silver are in the 63 , look up metal conductivity index .

some are using super conductive treatments, That help like Graphene. 
they do make a difference , but synergistic $600 fuse is very good I am told to put 1 in the chain ,but I am not will to send that ,I can get it Get it for $500 but still too much . I do use the Synergistic purple, ad Hifi tuning Copper  fuse .

Was unaware that graphene is a superconductor. I was of the understanding that it's a semiconductor 

Psychology

What is an electrical fuse? An electrical fuse is a safety device that operates to provide protection against the overflow of current in an electrical circuit. An important component of an electrical fuse is a metal wire or strip that melts when excess current flows through it.

What is the rating of an electrical fuse? Fuse rating is the maximum current that a fuse can safely carry before it blows or melts. It is usually expressed in amps (A) or milliamps (mA). For example, a 5A fuse can handle up to 5 amps of current, while a 500mA fuse can handle up to 500 milliamps of current.

Advise 1: If you think the manufacturer has installed a fuse or given a power cord that is inferior and no good, then don't buy that piece of equipment, period. Because you deserve for the money you are spending a complete piece of gear with compatible accessories (fuses, power cords, feet, casings, etc) to get the best out of it.

Advise 2: If you really think you need to spend $$ on some expensive "audiophile fuse," whatever that is, then please make sure you stay within the same ratings as recommended by the manufacturer. Do not exceed current/voltage ratings under any circumstance.

There are those who think somehow some way, the fuse type will impact the sound quality and changing fuse will give you different flavors of sound! They also believe in Santa Clause delivering toys during Christmas, Tooth Fairy leaving $ under the pillow when their teeth fell off when they were young as well as when they get older, etc.