This is a fair point. For high data rates (such as you get with 4K video) and long runs, capacitance becomes a real concern as it makes for a pretty severe LPF over the length of the run that can destroy the clear peaks and valleys on the signal.
We don't really have to worry too much about that with audio and data to and from the Fractal gear.
We don't actually have anything to worry about with video either, unless you buy cables that lie to you.
The people who decide on the spec for the transmission protocol (e.g., HDMI v2.1) describe what is being transmitted at what time intervals on what pins with what voltages and how to both transmit and receive them, plus the electrical properties that the cable (as well as any active extenders or converters) needs to have in order to work, which includes a maximum length.
If it's in spec, either it works or it's broken. If it's not in spec, it may or may not work regardless of whether it's broken. That's literally it. The same thing is true for all digital cables.
I’m so glad I can’t hear electrons moving at nearly the speed of light in a wire. They’d be so screechy, probably like high-speed fingernails on a chalkboard.
You might find this interesting:
It’s not magic just a basic improvement. I heard it and so did my engineer, who is booked all the time and doesn’t need my money bad enough to ‘yes’ me.
Here’s a review which details the company’s resources and determination to achieve measurable performance improvements:
http://stereotimes.com/cables091001.shtml
That did not include any measurements. If they didn't post measurements, it's only marketing.
I didn’t spend $200, I have the cheaper one, and I’m aware of the marketing angle. They have a patent on their hollow oval wire design, I can hear a difference and the principles outlined in the patent make sense to me. Dig it or not:
https://patents.google.com/patent/US6005193A/en?oq=U.S.+Pat.+No.+6,005,193+
So, first thing's first....if you honestly believe it sounds better and that inspires you...and you can afford it. Go for it. I have fancier speaker cables than I need because I think they're cool. There's nothing really wrong with that.
But...the patent might be funnier than the website.
They basically make 2 claims about how their design is better for high frequency electrical transmission: one about skin effect, the other about current bunching. The information they provide shows that skin effect won't affect AC power in this application, and they make no supported claims about Current Bunching affecting real world AC power, only high frequency transmission. It looks like they got the patent because the design was technically better in a way that even their own application doesn't claim will make a difference for the way the cable is actually being used. But, that's not what the patent claimed. It was granted for a "Cable for transmitting electrical impulses". And in some cases, assuming their information is correct, it would be better at that. Just not when it's used for 50-60Hz 120-220V AC.
It also expired 5 years ago and people aren't rushing to copy it.
It's really similar to the LPF effect of cables. All cables are Low-pass filters. The question is whether or not they interfere with the intended pass band of the signal. And that's math you can look up and do yourself....it's actually pretty simple if you can get the specs of the cables in question (or measure them). That's why the cable does matter between a passive guitar pickup and the first buffer....longer and higher-cap cables create a lower cutoff frequency for the LPF that can be audible. But...it doesn't matter for speaker cables or line-level cables because the important details are so different that the cutoff frequency is above the range of human hearing. It matters again for digital cables (USB, DMX, Ethernet, etc.), since they need a pass band into MHz or GHz, depending on the cable.
A power cable's pass band only has to go a bit above 60 Hz.
