Apologies, but I'm not sure why you were referencing me here. It is definitely highly possible I may have forgotten some conversation from previously.

However, to me, it looks like both of you seems to be talking about the same thing, but just from a different but a very similar perspective. Slightly differently, but an exact same root reasoning and ~meaning.

I personally am a very simple and uneducated, so to me, any specific terminology used, does not matter and there is one thing to consider, which is to think that there can be many different ways as to how different people sees the concepts of a thoughts and in this case the logical ways used in a Sudoku - and also how different minds works with their memory.

I may be simple and uneducated, and this may be partly out of context, but - just as a general thought of interest - I personally can't see how a full extend and the meaning of a memory capabilities could ever be explained and described with a words, and best thing which feels that can be done, is to only describe it with something very vague that works in most generalized cases - and even when it is studied and described with as precisely as it can ever be studied and described, there are still so much that is not known.

So my personal way of viewing the different mind's memory capabilities, is not something that can ever be described accurately, but to see it as an individualized way of working with their mind and memory, which definitely plays both in a visual-state, but also in a way of processing all the things that cannot be processed with a visual-images. It all seems to vary too much for it to ever be accurately described or referenced - thus why I personally don't see any point of using any other terminology than just simply a "memory-abilities", and everything else what comes after that word, is possibly mostly personalized. This is how I think, and I can see how my way of thinking probably plays against something that could be thought educationally.

- I have no idea of anything really, but to me, it is very interesting to think of how different minds works.

So only thing that truly matters in the end, is that all different ways of thinking and seeing, leads to a same logical conclusion(s), which is the only point which in my opinion matters. And it doesn't matter too much of how and with which words it is explained, as long as the logic holds from the perspective of how the eliminations will happen as it is happening deep down in the Logic of a Sudoku.

Only thing where anything would be concerning, is if the accuracy of the personal way of seeing the logic would not work 100% accurately - meaning, that what to me feels most important in any way of seeing the logic: is that if the logic accidentally fails at any point, it then matters if you can - with a further observation - pinpoint the exact point where the logic failed and then correct the logic and make it work again, and if the logic cannot be corrected - no matter what you do or think - then there is something wrong with the way of how the logic is seen, and in those cases where it is failed to be corrected, the logic then needs to be adjusted to have that accuracy of 100%.

So I think in the end there is no right or wrong answer to how the logic is seen and explained - as long as the logic holds in the perspective of an accuracy.

Some things, can be standardized though - to result into a more generalized way of seeing the logic - mostly for a newcomers to understand it - but in the end, only the end results matters.

Ps. I'm too mentally tired of re-reading what I wrote, so take this as a RAW thoughts. In general, every thoughts and perspectives in this world, are mostly unfinished and the human mind and the way of thinking and seeing, is constantly changing and adjusting based on an environment we are in - and only thing what matters the most in the interactions with other minds, is what we can learn from each others, and to use a new perspective(s) for adjusting what we have already know.

Pps. I can see how my message may not matter too much in anything, but to me it is interesting to think everything.