"Regarding NEP being "fake", Yen Sid does say to Sora, Donald and Goofy what a Nobody is including that feature of them not being "existent", and the in-game journals in KH3D and KHIII support this being a legitimate part of the lore on the series.
Nobodies can (re)grow their own Heart eventually, so they eventually lose that physiology, rather than the whole thing being made-up in-verse."
>The scene you linked was Ansem explaining how hearts are formed in general and how Nobodies aren't different from that,
same way how data AI Sora quickly grew a heart, so he just basically deconfirmed the concept of nobodies being non-existent or not having hearts so anything regarding non-existent physiology should either be removed or should be noted to happen for at the most, a couple of seconds before it's immediately gone which would scale to no one in series and would remove any NEP negating abilities the KH cast had.
"Nobodies aren't beings of darkness, they
explicitly lack that, plus see above, there's plenty of Dream Eaters that use "light" magic such as Sparkga and they are actually dark-based beings, so this correlation is pure headcanon currently on this regard."
>Except it's not pure headcanon, they are literally consistently shown to use dark powers and their death itself is them fading with darkness around them, not to mention the link of the very person you gave that stated they lacked it
is the very person that lied to everyone in the first place. His statement is greatly contradicted by the showings, when are dream eaters ever stated to lack light?
"
Considering what Ansem the Wise brought up, Hearts being only on living beings is a possibility, but then it's stated that you only need to "see" it for it to have a Heart, which is how even Baymax is confirmed to have one. There's also the undead in Halloween Town having a Heart and so on."
>It is only on living beings since to even have a heart you're defined as 'alive' as shown by your sources, the entire thing of an undead being is one brought back from death, so they're alive.
"A Heart being related to "life-force" is unfounded from a glance, so I would like some more details on that regard., even if plausible."
>This already got discussed and it was agreed it's essence/emotion, not enough for conceptual.
"I would like if you could explain how exactly the Xehanort thing is a huge stretch. All of Kairi disappeared, and the Heart was scattered in (abstract?) pieces for Sora to collect during Re:Mind. I'm somewhat neutral on if a "Heart" is actually something abstract or just a fancy variant of a soul on practice, but I would like to get somewhere."
>Because if she truly was scattered conceptually into pieces she'd not be remembered, wouldn't exist in the past, etc. She'd be conceptually gone from existence.
"Lol no, tier 1 KH based on that would be ridiculous, I mainly kept that part from your contribution to this IIRC, but in any case thanks for pointing the "higher-dimensional" clash things that were mentioned, and yes, it doesn't support the abstract stuff and would at most just be complementary on an extent of where it could go if it was from the other proof, respectively."
>No one here said tier 1 KH, a high dimensional clash even if it actually meant higher dimensional wouldn't even be tier 1.
"Nobodies need to have an "strong will" to be able to even be born from the remains of a being that got its Heart removed, otherwise they aren't even born and just remain in "absolute nothingness" or so. That's why it's stated that Heartless are more common than Nobodies."
>Further supporting the position that any nobodies with bodies aren't actually nonexistent and have physical presences.
From what I see the OP himself is neutral now on hearts being conceptual so I don't even know if this thread even has any support by this point.