Thanks for this interesting short article...
The author use the concept of "audio believability" which include way more external factors than just acoustics concepts then more external factors than my M.A.S.T. concept...
I opted for a more minimal or lesser solution myself without demanding too much in terms of high fidelity in relation to a real event or believability...
Why?
Because the problem for me appeared first and last in term of acoustics concepts concerning the recording trade-off set of choices of the audio engineer and my own listening room acoustic translation of these choices..
For me "believing" in the audio phenomenon playback is enjoying my system/room well optimized, it is not not being able to confuse or conflate or be in the position to be able to mistake my system/room for the "real live event"; a task possible for sure but at a cost which will be way over the means of most people anyway...( for example i dont bother myself with deep bass at 20 hertz or 30 Hertz,my sub is low cost )
Upgrades for me was a means to reach this M.A.S.T. , not a race toward total "audio believability" experience...
I did this to enjoy music not to boast about my "sound" over everyone else "sound" experience...
But i am not so humble or modest, i can today boast about my S.Q./price ratio...One of the best possible...

It is way enough for my music listenings without feeling envy or frustrations of any kind ... I am very proud of that... This is the reason i posted on audiogon for those with limited budget who wish to reach M.A.S.T.
Being an audiophile for me is a temporary working state of being anyway, till music become immersive... Passed that point it is obsession...music is my obsession...
Will i upgrade my system in the future?
I dont want and i need to except if a piece break... And to beat my actual sound experience will cost me 10 times more money and i know exactly what to do in my actual environment (an acoustic small corner ) ...I dont need to reach this level of "audio believability" anyway to enjoy music... If i want something near this level anyway i already have it : my top AKG K340 headphone will give me Bach organ bassier note through my body...
It has been a learning experience. Also, I have taken on board Tom Martin’s Major Problems of Believability.