You are good. But at some point nonsense and Audio Science are somewhat incompatible and become extremely costly and confusing, and very unfun.
There is well established science on what actually changes with cables (the changes are actually measurable with sensitive enough gear, but many orders of magnitude lower than our hearing's ability to discern).
Same for various amp topologies. There is a great test involving many amps, including the legendary Futterman OTL, where nobody can tell the difference between the Futterman, a Class A Levinson, and a raft of other amps including a Pioneer receiver. Page 78 below:
https://americanradiohistory.com/Archive-HiFI-Stereo/80s/HiFi-Stereo-Review-1987-01.pdf
I worked in a shop that sold Levinson. Zero percent surprising, nobody in our shop and none of our customers could tell if I swapped a Niles install amplifier for an Audio Research or a Carver. This was 1987, solid state amps have gotten even better since then. Tube amps for the most part have regressed, despite what the industry would lead you to believe. The studies by David L. Clark also illustrate the fact that if you have a tube amp that is actually audibly different, it is likely not working like an amplifier of voltage, or just has high output impedance and alters the frequency response, or it hisses loud enough and you have sensitive speakers. He published lots of papers on this. If we want to revisit his work, best to join AES, do some research, publish some findings. Start with Clark's survey of ten years of A/B/X results:
The AES Forum is where our members get to interact with each other in between conferences and section meetings.
secure.aes.org
Use the same plan if there is a desire to challenge Ohm's law.
There are so many other things, like the studies on actual audibility thresholds.
Also well established science on sighted listening.
Even science on how distributions of preference in our population.
Fun is one thing. But the odd and very expensive shape the audio industry has taken is not really that fun. Makes good sound strangely inaccessible to many people, despite the fact that good sound is actually available for cheap these days, and changes and improvements in sound are often free (for instance, I can't tell the difference between PEQ applied with free software vs. expensive outboard DSP). Yet we sill have horrible speakers that cost a ton, electronics that add nothing despite what we are led to believe. And we have companies selling kit with all sorts of unreliability, from firmware to hardware. It's even more troubling to me that many of the modern tube products ignore good safety practices, don't get me started...
Lots of places already exist for nonsense, goodsoundclub comes to mind, and is really quite fun. But they really aren't fun if you have any budget constraints and if your goals include good sound reproduction.