This entire text is just irrelevant and can be dismissed. The sun is a direct counter to their existence and no, losing heads doesn't equate to them dying. Yushiro got his entire head and neck crushed by a temari ball and was fine, Daki got her head kicked in and was fine. The temple-demon, a sub-FS tier demon, was implied to survive head crushing. Rage-amped Muichiro crushed woodland-mansion demon's head and survived and couldn't die until the sun, their arch-enemy and counter, killed him. Gyomei was forced to crush a stronger demon's head in until dawn because said demon, despite having his head crushed the entire time, survived. Please engage with the source material before replying to me.
Because they were dealing regular attacks, which the demon's could heal from. Nichirin steel had absorbed heat from the sun, and thus as effective agaisnt them. That's literally the whole point, how do you not know this? You ask me to engage with the source material, but I still clearly know more about it than you do. Even though the sun is deadly for them, it's literally mentioned time and time again that heat is also effective agaisnt them, because if you burn through their cells, their healing will be impaired. Red Blade is literally just your blade heated up. Sanemi and Gyomei both got their red blades just by CLASING their weapons, generating heat from ATTRICTION, and that was already enough heat to impair Kokushibo, the uppermoon one, healing to some level
Giyu and Sanemi, during their fight, also turned their blades red from FRICTION. Once again, Red Blade is known to heavily impair and weaken a demon's regeneration through burning their cells. The heat generated through SWORDS CLASHING doesn't come even near to Sukuna's thermobaric explosions, which wouldn't simply reduce Muzan to nothing, but would also burn his cells to the point where he wouldn't be able to regenerate. Once again, do not tell me to engage with something you clearly either are intentionally ignoring to try and boost Muzan, or that you didn't read.
"just heating up your blade" this is being dismissive of a nichirin's sword's property. They contain the power of the sun and thus can weaken their regeneration enough to cut off the lives of demons. It was never stated that heat alone damages them, only sun-absorbed fictional nichirin-blades further enhanced with red-blade qualities. Otherwise Akaza's regeneration would've been hampered with when Kyojuro melted the ground and when he engages in CQC when Kyojuro visibly exerted heat from his whole body, yet, such thing never happened. Unless you can properly quantify and rightfully equate Sukuna's heat to the power of sunlight infused into fictional steel of nichirin blades I'll have to dismiss this with hitchen's razor. This is actively ignoring in-verse rules.
Rengoku never produced real heat. Gotouge already said this, all his fire is simply visual effects. I do agree that Nichirin steel is important here, but it's not really a must have. Muzan has never shown to be able to regenerate from having his whole body destroyed, and Muzan's Furnace is way stronger than anything Muzan has ever withstood. You have no evidence to claim that he would be able to survive a High 7-C attack that would reduce him to nothing. Muzan doesn't have invulnerability, he simply is way stronger than any regular human (who, once again, fights with SWORDS) in his verse. Him getting hit by a cursed attack (Sukuna's STRONGEST attack, who would have the biggest amount ot CE out of all his moves, so it would generate the strongest curse on Muzan), that is way stronger than ANYTHING he has ever endured, would yes be enough to get rid of him. The other Muzan supporters already accepted this, and literally anyone who looks through their pages and sees Muzan's durability would also agree to this. Muzan's high-mid regeneration wouldn't allow him to come back from nothing.
Sukuna is no cursed spirit nor are the shikigami. Equating 'curse effect' to Sukuna and shikigami is an association fallacy. He doesn't have such ability and neither was that shown. Either way, Muzan has Disease Resistance listed on his page via Daki stating demons don't get sick. Muzan was plagued with a disease that will kill him before 20 then instantly negated that by turning into a fresh demon. At best the 'curse effect' scales to a fodder Maki, whom got no diffed by a building tier school-curse. Muzan negates this effect completely and is irrelevant in this discussion.
Who claimed Sukuna was a cursed spirit? Once again, you didn't even read my previous arguments (or are blatantly ignoring them). Refer to my past posts, I already explained that shikigamis and cursed spirits work in the same way, so yes, they DO have that effect.
And once again, like you posted here, Cursed Energy Manipulation's page explains, the manga itself explains, and even simply watching the anime would also explain this to you, but the CURSE EFFECT comes from being affected BY A CURSED ATTACK. Curses are MADE UP from CURSED ENERGY, so a strike from them, is a strike made up of CURSED ENERGY. All of Sukuna's sorcery is made up of Cursed Energy, and WOULD result in the same effect. You're, once again, deliberately lying about how Jujutsu Kaisen's in-universe power system works, without showing any proof of what you claim. I already covered this in previous posts, but, once again:
Sukuna's finger was only a cursed object, because it was an objected that contained Sukuna's SOUL and CURSED ENERGY. HIS cursed energy was so big that Megumi himself said (when Itadori ate Sukuna's finger) that letting such a strong cursed energy inside of you was like akin to ingesting a lethal poison. He literally said that the chance of survival of anyone after consuming one single finger from Sukuna was impossible (the one in a million is a japanese form of speech that was badly translated. It was said whenever refering to something that was impossible). So YES, once again, both Sukuna's and his shikigamis attacks, via the attacks being MADE UP OF CURSED ENERGY, do apply curses. The first thing Itadori learnt with Yaga was to control himself as to not curse a loved one by accident...
Again, "a person". The person in question being the average JJK human. This is Muzan, a demon with a completely different body physiology and capability to regenerate their entire body against a regular human with no such capability or feats at all. This point is null.
The average JJK human, just like Muzan, has no resistance to curses. Why are you trying to apply biology agaisnt magic? What magic did Muzan face in Kimetsu no Yaiba for you to claim that he, who has NEVER resisted a curse, wouldn't be affected in the same way another person with no resistance to curses would?
0.7 tons "strong curse"

"Way more potent", (Sukuna has never displayed such ability) yet still unquantifable.
You are, on purpose, ignoring my point. Once again, no problem, your other Sukuna supporters, and anyone who sees the difference betwen Sukuna's HIGH 7-C with Furnace, and Muzan's NECK 7-C durability knows what happens. And once again, curses are only applied to those who cannot use CURSED ENERGY. Cursed Energy protects your body from cursed attacks, that's why sorcerers do not get the regular effects of a curse. It's literally explained in the start of the manga, and I alredy provided scams before this. Sad to see you resort to this instead of really tried to make a valid point.
Pre-supposes that Furnace will hit Muzan directly, which is not gonna happen. MCB Choso survived this from a distance btw.
It will. You didn't counter any of my points of how Sukuna would do that. I won't repeat myself, you can go back and read it, and then try arguing agaisnt them instead of engaging in useless arguments. Choso didn't survive agaisnt Furnace, he literally sacrificed his own life to protect Itadori. Everyone KNEW that if they weren't teleported away by Todo, or if Choso didn't SACRIFICE HIS LIFE to protect Itadori, all of them would have been killed by Furnace. Also, Furnace's power scales directly to the amount of explosive material generated by Malevolent's Shrine duration, so Sukuna can always charge it even more if he wanted more destructive power.
Cool, gotta justify this featless attack speed hitting Muzan at close-range, let alone hit him in the first place before Muzan defends himself with faster attacks.
No, I do not need to do that once agan. Speed is equalized, and if you want to read everything I already argumented with the others here, just go back and read what I said before. I won't repeat myself once again just for you to ignore it.
False equivalence. What empirical evidence do you have to justify Yoriichi's burning equates to Furnace, which has no heating feats on the level of sun infused blades amped by BT's. Also, once again blatantly ignoring that this is a sun amped + nichirin sword combined sword. Muzan also states against Tanjiro that RB's don't affect his prime state at all, the only one whom even came close to such effect is Yoriichi. So again, Can you lay out a foundation of evidence to compare Yoriichi's to Furnace?
Nichirin steel is literally just steel that absorbed sunlight for a long amount of years. You're acting like Nichirin steel is permanently heated up and untouchable to anything, and that it sits at the same level of the heat of the sun, which is not true. Human characters literally continuously fight with their swords, and we have already seen them touching their blades with no burn marks whatsoever. Yes, I can. Yoriichi's blade is never stated to be heated in any special way when compared to the others slayers'. To the contrary, since it's confirmed there's no super powers in KnY, it's all just technique. Yoriichi is the most skilled human in the verse, that's all.
Sukuna's Furnace is literally stronger than anything KnY verse has ever seen. HIGH 7-C agaisnt Muzan's 7-C NECK. How do YOU claim that Muzan, who has High-Mid regeneration, would be able to come back from something that would instantly obliterate him? Fire Arrow has an way too big AP advantage here. Muzan has NO WAY to survive it.
Thermobaric explosions do not provably compare to the power of sunlight combined with the effect of regenerative power negation. I don't care what other "Muzan supporters" say. They most likely don't have the knowledge I have.
Why don't you display this knowledge here? Show me the pages where it's explained that Nichirin's mere sun-bathed steel is anything more than that. You're acting like the sun properties on it are magical and not purey HEAT.
Muzan has extraordinary senses and can sense things invisible to the eye via showings and via upscaling from Akaza, Inosuke's and Tengen's senses. All of which can sense attacks invisible to the eye or entire caves, buildings to forests. Kokushibo and Douma can also sense Akaza dying, so Muzan absolutely has senses to perceive curses and the likes. In fact, Toji can see curses due to having HR, which amplifies your senses. KNY has higher assertive sense scaling therefore Muzan will see Curses.
Muzan's senses > Akaza's senses > Inosuke's = Invisible to the eye.
Curses = Invisible to the eye > Regular JJK Humans.
Higher assertive scaling therefore higher assertive senses.
Toji do not see curses due to having HR, it's LITERALLY explained that he SENSES THEM through the world itself. He perceives them by the alterations on the atmosphere and air density. When cursed spirits moved, even though non-cursed effects cannot interact with them, they themselves can interact with the world. THAT'S how she perceives them. She doesn't see, she feels it.
Daido, the swordsman, explains that his "perception of curses" works in the same way. Although he cannot see them, by perceiving the world itself through his heightened senses, he can feel and detect them.
And no, Kokushibo and Douma sensing Akaza's presence disappear do not equal to him SEEING curses, being made up of cursed energy, something he cannot perceive. Tengen could feel the entire cave due to his particular super-enhanced sense of hearing, he didn't "see things that were invisible". Nor does Akaza's page show anything like that. See-Through World doesn't make you perceive what is invisible, that's false. It only let's you perceive the inside of that which you can already see.
Muzan can sense the curses through their killing intent, that was already agreed on way before this, but no, he cannot see them. None of that is on their pages, and I read the manga, they never did see anything invisible.
You're baselessly presupposing I purposefully ignored it. I also don't care what the narrator states as multiple arms is the reason Kashimo struggled that much, evidently so, so I couldn't care less about your interpretation of the narrator's text when the showings support me even further. Both can coexist at once, this is not a rebuttal.
"I don't care what the narrator states as multiple arms i sthe reason Kashimo struggled so much", Kashimo struggled because when Sukuna got his perfect body, he was pratically instantly chanting and doing his hand signs, without any of the downsides. We literally see him die to Sukuna's slashes, not his punches. But yeah, thanks, you've already shown that you do not care about what the manga shows, you only care about your personal view, even when it's proven you're wrong. The others here are way more reasonable and, at least, want to discuss what happens in both mangas. No use trying to talk to you if you wanna base yours arguments on your headcanons.
Again presupposing I'm lying. Very condescending of you btw. I could accuse you of lying straight to my face about demons dying to crushed heads, yet I don't. And once again, both can co-exist at once. Whole lot of nothing said.
When did I state that demons died to REGULAR head-crushing? You talk ill of me for saying you're lying, and here you are lying once again. You ignore all of my points, lies, and then tries going in circles. Probably trying to stall, I guess.
Good luck justifying that is his name in the first place. He was never once refered to as king of lethal poisons, the cursed object is lethal, therefore the terms lethal poison. Sukuna himself once incarnated does not scale to such. The only example being the "king of curses and king of lethal poisons and toxins" quote, which as I explained earlier was a mistranslation.
And why is the Cursed Object lethal? Because it has Sukuna's cursed energy all over it. Do not act dense. It was not a mistranslation, I already explained the "mistranslation" myself. The title of Lethal Poisons and Toxins refers to curses. Sukuna is the king of curses, and his curse is the most lethal. Remember, curses are akin to poisons for humans, that's why he, the king of curses, IS the king of poisons.
That doesn't correlate that Sukuna is now poison resistant at all.
He was immune to Kechizu and Eso's poison. He is immune and his page here agrees with that, so I won't go back to this, we already went through this. If you want that changed, go and try getting it changed.
I'll wait until you justify that. If it is indeed stated "over and over again" why are you not proving it? Regardless, all kinds of poisons, ain't scale him anywhere.
I already did, you're simply ignoring it just like you did with everything else.
His poison is his bio hax. This is just semantics. Also can you actually give reasonings instead of asserting that I'm spewing nonsense? You keep repeating featless 'curse effect' yet you're here asserting his 'bio hax' doesn't affect Sukuna. Muzan has higher assertive scaling via his poison, unlike anything Sukuna has shown in terms of resistance. He's not surviving.
"Featless curse effect", and I have repeatedly shown the effect in action. Both agaisnt people with minor resistance to curses and with people with no resistance to curses. You're simply ignoring it, and as I said, I won't force you to answer my arguments. If you wanna go in circles like you're doing right now, keep going. I already explained with his bio-hax would be useless unless he did a insta kill on Sukuna and how Sukuna would survive that, you still didn't counter argument any of that.
All Muzan has to do is absorb his shikigami. Also I love the double standards. You keep asserting that crushing a demon's head or burning their cells is all Sukuna needs to do, yet make a completely 360° when you see opposing evidence of a non-sorcerer vs curses and them not being able to see them/damage them. Sukuna doesn't have the sun, nichirin or RB, therefore he ain't taking down Muzan as it is stated that only those can kill off the lives of demons.
He cannot interact with shikigamis, so no, he cannot. And even if he tried, all he would get himself is a worse curse, since he would be bringing a whole being that not only is covered in Sukuna's CE, but also is made of cursed energy inside his body, and we already saw what the manga says about that (refer to my scans and explanations about Sukuna's finger). No, there's no double standards. You, once again, are lying. I, from the beginning, agreed that Muzan will be able to sense the curses, because that's what he will be able to do. Maki does NOT see curses, she feels and perceives them by changes in the atmosphere and air density. She just feels and reacts to it. So that's all Muzan would do. He would not see it. And what is your point here? Are you now claiming curses/shikigamis can be hurt without cursed energy? I already sent dozens of times Megumi explaining that the only way to damage a curse is through Cursed Energy, but alright.
Muzan is not invulnerable to anything other than nichirin steel, that is never stated. He simply is stronger than regular steel and has an ridiculous amount of regeneration, which makes it hard to kill him. We literally see Ubuyashiki's bombs being able to heavily damage Muzan. The thing is, HE HEALED. But we saw that it could damage him. Slayers are humans with super human stats fighting with nothing but swordsmanship, that's why they have such a hard time agaisnt Muzan. But not only Sukuna has way more firepower than anything in the KnY universe, he also can also incinerate Muzan's cells through the thermobaric explosions, which was mentioned IN MANGA that burning a demon's cells is effective agaisnt them (Muzan's regeneration wasn't instant after he was exploded by Ubuyashiki, it clearly was somewhat slowed. Normally he just regenerates instantly, but there, the burns clearly made him slower at healing). Will you show any proof or valid arguments, or will you keep going in circles?
Any and all phenomena in the JJK verse. Please justify him being able adapt to cellular-damage in-time before he vaporizes in seconds due to featless poison resistance.
No, it doesn't say "all phenomena in the JJK verse", it says all phenomena. His page here also states that Mahoraga's adaptation works agaisnt anything. It does not say "adaptation (to cursed techniques)". Once again, we will be using what the pages claim the characters have, so unless you get Mahoraga's adaptation changed, that wincon won't change. You want me to justify? Alright. Non cursed energy attacks cannot kill a being made of cursed energy, as the manga stated time and time again. You could simply have gone and read Jujutsu Kaisen's verse page on here and have learnt that yourself, but whatever, I guess.
Also, Muzan didn't vaporize any of the slayers who could somewhat control their bloodflow through their breathing, so no, he would not vaporize Sukuna "in seconds" when he has never shown to be able to do that. Sukuna would simply stop his bloodflow, destroy Muzan's blood from inside his body and generate more blood through RCT. Muzan has never instantly killed any slayer who had a little bit of bloodflow control, so he won't be able to instantly kill Sukuna and you know that. No proof = not happening.
Just because both are classified as Pocket Reality Manipulation doesn't make them equal nor does it allow one to destroy a provably vastly bigger space and again he has never shown such DC, this is the definition of appeal to ignorance. Domains are broken easily from the outside and more difficult from the inside. Mahoraga adapts to UV, breaks the domain, which is already unquantifable difficult to break. Therefore, why is shattering a vastly bigger and different space equal to a different dimension Muzan creates and summons? IC doesn't break when a portion of the space is broken, domains do. The usual false equivalence.
How can you claim it's bigger? Domains are said to be impossible to escape from inside. Even if you walk, walk and walk even more, you won't be able to reach where the barrier is. Unless you have actual calculations to claim IC is bigger than Satoru Gojo's Unlimited Void, your point doesn't matter. Also, Mahoraga was simply deactivating the ability, and thus he destroyed it. He can do the exact same to IC. It's size doesn't matter, Mahoraga will simply deactivate it.
Domains do not break "when a portion of the space is broken", that has never happened. When Itadori broke a huge chunk of Mahito's domain and invaded it, the domain wasn't broken, it was still active and it's Sure Hit technique was still up and going. Mahito's domain only broke when Itadori entered the domain, was affected by the Sure Hit, and Sukuna hit directly into Mahito's soul (another win con I didn't bother bringing up yet, but Sukuna can also damage Muzan's soul and kill him through that, as we saw him cause real damage to Mahito).
And if you're thinking about claiming that "the barrier size is the actual domain's size", please, don't even try that. Gojo's baseball domain is proof enough that the barrier's size is not reflexive of the domain's interior. Dagon's Domain had a whole ocean inside of it that went as far as the eye could see, and it still was enclosed inside that small barrier.
This ain't a rebuttal. Mahoraga can destroys domains, sure, this doesn't prove he can destroy IC. If I can adapt to a certain illness that doesn't now equate to me adapting to a stronger illness. This is not how it works at all. The burden of proof is on you to prove connective scaling. You failed to do that.
I already did. After adaptating to UV's EFFECT, he was able to instantly deactivate UV and break down that Pocket Reality. Once he is affected and adaptates to IC ability, he would be able to do the same. Both are an Pocket Reality with it's own special effects. We already saw Mahoraga being able to break one down by simply adaptating to it, so YOU have to prove that it won't work. Saying "it won't!" isn't proof. I already provided evidence that he can.
What makes the basis of Douma's BDA different from Muzan's BDA? Both are made with blood and both are reliant on the demon's strength. He creates ice-clones through the concentration and density of his blood, freezes said blood and spreads it with a fan. Muzan has vastly more concentration and density and creates actual fully-sentient flesh beings as opposed to freezing blood and then spreading it with a fan to create little non-sentient ice-clones. An exact copy of Muzan's body has vastly more volume, concentration and density than said little-ice dolls, which would logically reason that Muzan's clones are superior to ice clones, how do you go from me stating Muzan has clones to Muzan summoning Douma?
Please actually read what the page states. I'm convinced you didn't actually read KNY or Muzan's page because you have an agenda to run.
Each Demon has their own BDA. If Muzan could use Douma's BDA, he would have used. He is only able to use Nakime's ability through her, that's why when she died, he wasn't able to use IC anymore. BDA is not purely manipulating your blood, it's a demon special technique, and the fact you're "arguing" here instead of sending a page in the manga where Muzan uses Douma BDA, is enough proof that is impossible. I not only did read their pages, I already said I already read the manga. Every time I don't remember something, I'm simply looking for a specific fight and reading it again. That, or I ask here for assistance. I never mentioned or used anything I don't know about KnY as an argument, different from you. Good try, tho.
I never once indicated that I "cannot explain why nor how much" I just never elaborated, that's all. Either way, 16F Sukuna has no electricity resistance. I ain't reading your previous points, I can assume though that you'll likely argue Gojo's example. However, that is inherently flawed as Gojo is not Muzan and he engaged in CQC way prior before using shikigami. Gojo is also objectively a bigger hurdle to oppose in-verse than Muzan due to a difference in their defensive abilities. So, despite this objectively better defense Sukuna engaged in CQC. What's to say Sukuna will fight like that? Oh, also is it even in-character for Sukuna to instantly start off with Mahoraga or Shikigami? He starts of with cleave and CQC i.e Ryu and if he wants something of an opponent, i.e Yorozu and Gojo, he'll utilize shikigami (He primarily used Megumi's abilities to further succumb Megumi into darkness and primarily used shikigami to gain an UV counter). These examples do not reflect Sukuna's usual fighting style as he's head-on, CQC oriented. Muzan also in-character makes changes to his flesh, which caught even Giyu and Tanjiro off-guard and they hadn't even realized it was his arm that was used akin to a whip. Sukuna, cocky and like usually engages in CQC, only to get caught off-guard with long-range blood-infused attacks that vaporize him due to lack of resistance. Sukuna is absolute terrible in CQC. He saw Gojo as a threat and still got horribly done in in CQC sometimes, this ain't gonna be different with Muzan.
If you aren't reading my previous point, read them. I won't repeat myself unnecessarily, and I already have disproven everything you said here. You literally are simply lying once again. Gojo was the one to force Sukuna into CQC, and Sukuna had no other choice but to also engage in it, since the only way he could get through Infinity (AT FIRST) was through Domain Amplification. Read my past posts to understand why you're wrong. If you won't whatever, but I already explained all of that.
So yeah, not only did you prove you do not care about what really is in the manga (you literally said you do not care about what the narrator said, because only what you think matters), you also admitted to not reading what I was saying. The only reason I answered this is because other people ARE reading and they are understanding my points. Keep ignoring, there are other people here up for discussing. I'll also be ignoring your posts from now on, since you claimed you would do that to mine.