|Though I do hear differences, I think it has a lot to do with the output stages and balanced vs. single ended connections in a system that processes signals as balanced internally. The biggest and most glaring differences were using HDCD vs. non-HDCD, which was the original topic, not DBT and normal CDs.
Well, it's an interesting hypothesis but until you find a way to test it and examine other known sources of differences, it'll remain simply a hypothesis. When you say CharlesJ is "religiously devoted to an outmoded way of interpreting events.", I'd suggest you think twice about that because your sighted, non-level matched, I didn't even know if the FR of both units coming out of the analog stages is the same, is not especially scientific.
So you've got a preference for a particular HDCD encoded piece sounding better to your ears non-HDCD decoded right now. So what? You haven't done nearly enough work to understand why that is. If you want the answers, if you want to test your hypothesis, then do the damned work alreay and stop leaving your hypothesis dangling like it has some sort of conspiracy theory merit. Frankly, it doesn't.
Further, "His mode of thinking has been popular since not too long after Cartesian physics was accepted as the sole truth in reality..." is hardly an accurate portrayal of science. It suggest that science simply stopped, sat back in a rocking chair, and said, "well that's the way the universe works folks. enjoy." Stop postulating about science if you've no intention of doing it.
And FWIW, all Shrodinger's Cat proved was that quantum mechanics doesn't apply to large things like cats, apples, and all that. It has definite areas of applications that don't extend to other things. Besides, the cat was a pussy. ;)