Having had a pair of Teo speaker cables in my system for some time, I can attest to their spectacular performance. Originally, I had them on loan for evaluation, and quickly realized they were NOT going back!
I originally refused to make speaker cables, knowing they'd be stupid expensive.
I decided to get into the herculean task of designing a set and making them, and this, at least a few years after we started selling the RCA's. I was finally curious enough. I knew at the higher current would 'steer' and control the fluid, to exert much influence on the conductive threading and ribboning (complex dynamic electrohydrodynamics) in the fluid and actually be better than the interconnects.
When I heard them, I knew it would be a seller... and a pita to explain. It is the hearing that counts.
I don't want expensive stuff! I'm an original audio cheapskate!
But if this seems a bit much to absorb, I will offer an alternative subject that is scientifically 'off' in engineering speak, but totally real in physics.
The subject of overunity. Overunity, ie, perpetual motion, and beyond... is crap... right?
Not so fast. As long as you don't try to talk about it on forums and actually speak to physicists, you will find out that over unity is considered a very alive and real subject.
Untold billions of US federal and corporate dollars have been spent in making it work. So yeah, overunity is a scientific point that has been found to be real enough to openly and publicly spend tens of billions on.
In this case, it is called a fusion reactor. One of them being a Tokamak reactor. Just about any country of note and major corporation is making one to play with. They like them as power remains centralized. Cough. Ahem. And it costs them nothing once it is working but doled out to you..well...like a fiat currency. But other ideas, non centralized ones... don't work. They are fantasy, of course. As for the tokamak reactors.....we are nearly there!
Back to the subject at hand. Fluid metal has a dynamic 'electron cloud/orbital' conductive pathway alignment aspect that responds electrically and physically to the load or charge differentials.
No frozen (solidus) element or alloy wire can duplicate this feat.
Whether it is relevant to dynamic audio signals or not, is a thing for a listener to discern. The 85%-95% retention rate in the trials for this GC RCA cable seems to speak to a fairly universal fit.