Actually dissolving a person would probably require the lake to be magic, rather than operating by any kind of chemistry. I don't think any concentration of any kind of chemical agent, even at near boiling point, will dissolve an entire person that quickly (seconds, as described) - it just takes too long to get through the flesh. (There are a bunch of videos of chicken legs and the like in various acids/oxidizers on YouTube, which seem to bear out this intuition.) Maybe boiling chromic acid or piranha solution could do it?
Chakra acid.
 
Actually dissolving a person would probably require the lake to be magic, rather than operating by any kind of chemistry. I don't think any concentration of any kind of chemical agent, even at near boiling point, will dissolve an entire person that quickly (seconds, as described) - it just takes too long to get through the flesh. (There are a bunch of videos of chicken legs and the like in various acids/oxidizers on YouTube, which seem to bear out this intuition.) Maybe boiling chromic acid or piranha solution could do it?
There are acids aggressive enough to do it. They would also burst into flame on contact with the atmosphere, in regular physics. Assume the afterlife does not have entirely regular physics.
 
Actually dissolving a person would probably require the lake to be magic, rather than operating by any kind of chemistry. I don't think any concentration of any kind of chemical agent, even at near boiling point, will dissolve an entire person that quickly (seconds, as described) - it just takes too long to get through the flesh. (There are a bunch of videos of chicken legs and the like in various acids/oxidizers on YouTube, which seem to bear out this intuition.) Maybe boiling chromic acid or piranha solution could do it?
Perhaps it was actually a lake of superheated caustic soda (sodium hydroxide) operating under extreme conditions. That's pretty effective at breaking down organic material (through an interesting process called "saponification" where fats become soap a proteins digest into a slurry). In RL body farms this takes hours to fully dissolve someone, but they operate under realistic conditions. Conditions we can suspend in the Pure Lands. Have it be just below boiling and it would break someone down in only a few minutes.

That's still not seconds tho. So let's say there's a magical aspect of the lake that makes the reaction occur uniformly across the body rather than being constrained by surface area or diffusion rates. That would really speed things up! Of course, if you're letting physics fuckery happen then there's a much simpler solution available; the soda is incredibly hot, hot enough that it should have long since boiled.

And it would be brutal too. It would bubble, hiss, and emit noxious fumes as the Daizen's body rapidly saponifies, leaving behind only a greasy, gelatinous residue and dissolved bone fragments, only to fall in again to start the process over and over again, trapped in a fate that would leave Grey Boy impressed.

(Just thought I'd throw my two cents in for a possible explanation, @eaglejarl @Velorien @Paperclipped.)
 
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Actually dissolving a person would probably require the lake to be magic, rather than operating by any kind of chemistry. I don't think any concentration of any kind of chemical agent, even at near boiling point, will dissolve an entire person that quickly (seconds, as described) - it just takes too long to get through the flesh.
Out-there take that I don't particularly endorse: Isn't there a dilution problem with irl acids? In that, once a standard acid reacts with something, it stops being an acid, and as liquids have boundary conditions this greatly limits acidity in the vicinity of the surface being dissolved. If you imagine the liquid was a mundane boiling acid, but the state-resetting mechanism inherent to the path instantly cleared out all the dissolved human and reset the acid's temperature and clarity, I assume you'd get a much faster reaction. I could certainly not tell you how fast, however.

But also it's probably just magic.
 
Out-there take that I don't particularly endorse: Isn't there a dilution problem with irl acids? In that, once a standard acid reacts with something, it stops being an acid, and as liquids have boundary conditions this greatly limits acidity in the vicinity of the surface being dissolved. If you imagine the liquid was a mundane boiling acid, but the state-resetting mechanism inherent to the path instantly cleared out all the dissolved human and reset the acid's temperature and clarity, I assume you'd get a much faster reaction.
Funny you should mention that…
…let's say there's a magical aspect of the lake that makes the reaction occur uniformly across the body rather than being constrained by surface area or diffusion rates….
 
That would qualify as 'magic', yes.

There are acids aggressive enough to do it. They would also burst into flame on contact with the atmosphere, in regular physics. Assume the afterlife does not have entirely regular physics.
Name one? I don't think the superacids would really help here - conc. sulfuric acid is already enough to protonate pretty much everything protonatable, increasing the pKa doesn't help much in that regard since the limiting factor would be nucleophile availability. (I suppose the superacids might start protonating weird sites like alkenes, but I don't think that would actually help very much.) You'd need some other functionality, like the dehydrating effect of conc. sulfuric or the oxidative effect of piranha solution, and I don't think either of those would be enough. (Also, the afterlife not having entirely regular physics qualifies as the lake being magic.)

Perhpas it was actually a lake of superheated caustic soda (sodium hydroxide) operating under extreme conditions. In reality, caustic soda is highly effective at breaking down organic material through a process called saponification, where it turns fats into soap and digests proteins into a slurry.

While this process would normally take hours or longer to fully dissolve a human body, there are ways to make it work much faster in this scenario.
If the lake were maintained at an unnaturally high temperature—say, just below boiling—it would dramatically accelerate the reaction, breaking down soft tissue within minutes rather than hours. Additionally, the presence of magical properties could further enhance the speed and efficiency of the process, allowing it to bypass natural limitations. For example, a magical catalyst could ensure that the reaction occurs uniformly across the body rather than being constrained by surface area or diffusion rates, enabling complete dissolution in seconds.

The caustic soda approach also has a certain gruesome plausibility: it would bubble, hiss, and emit noxious fumes as the victim's body rapidly saponifies, leaving behind only a greasy, gelatinous residue and dissolved bone fragments. The addition of magic ensures that the process reaches its horrifyingly rapid conclusion, making the scenario scientifically inspired but sufficiently fantastical for the story.

(Just thought I'd throw my two cents in, @eaglejarl @Velorien @Paperclipped.)
Alkalis are better than acids at breaking down organic material, true - but there's a significant difference between "minutes" and "seconds", and the magical properties you cite are magic. If a lake somehow distributes a caustic agent throughout someone's body instantaneously, that qualifies it as being a magic lake, even if the caustic agent itself is mundane - and if you're using magic as an explanation, you could use any number of other magical explanations.

Out-there take that I don't particularly endorse: Isn't there a dilution problem with irl acids? In that, once a standard acid reacts with something, it stops being an acid, and as liquids have boundary conditions this greatly limits acidity in the vicinity of the surface being dissolved. If you imagine the liquid was a mundane boiling acid, but the state-resetting mechanism inherent to the path instantly cleared out all the dissolved human and reset the acid's temperature and clarity, I assume you'd get a much faster reaction. I could certainly not tell you how fast, however.

But also it's probably just magic.
I think this would require a fairly expansive definition of "dissolved"? The ECM is made up of a lot of very long polymers (hyaluronic acids, collagens, fibrillins, elastins, etc.) which all require pretty extensive degradation in order to actually become soluble. (Also, are you referring to a specific state-resetting mechanism? We've only seen that happen all at once at the point of death, not in bits as the body becomes more damaged.)
 
Alkalis are better than acids at breaking down organic material, true - but there's a significant difference between "minutes" and "seconds", and the magical properties you cite are magic. If a lake somehow distributes a caustic agent throughout someone's body instantaneously, that qualifies it as being a magic lake, even if the caustic agent itself is mundane - and if you're using magic as an explanation, you could use any number of other magical explanations.
Yeah, I edited my post to include a much simpler one.

I don't mind magic being involved, but I don't like it when something happens automagically. I want the magic to be doing something specific that changes the conditions of the actual natural phenomenon in a way we can model.
 
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Suggesting Oro just hide the rift ~20 miles away, so he and Manda can join the fight.
If Kisami(easily detectable by chakra size) is absent, we can just explode them with RER and they won't have the senses to detect us setting up
I'm not sure this is a good idea. We were hilariously overpowered at the Rift and in Leaf we'll have all the chakra in the world at our fingertips.

@eaglejarl @Velorien @Paperclipped

What do Orochimaru and Tsunade think of having Oro move the Rift a bit and then joining us to secure Leaf in case there's an Akatsuki pair present?
 
Yeah, I edited my post to include a much simpler one.

I don't mind magic being involved, but I don't like it when something happens automagically. I want the magic to be doing something specific that changes the conditions of the actual natural phenomenon in a way we can model.
I absolutely agree that magic should have a mechanism - but why should it be based on a natural phenomenon at all? Why can't it just delete matter it comes into contact with, or instantly dissolve all electromagnetic interactions?

Or better yet - what if it actually only dissolves chakra constructs? One hypothesis for why people's bodies vanish when they die in the afterlife but not when they die on the Human Path would be that the "body" you get in the Rift is actually a chakra construct, which simply dissipates once it's no longer maintained by e.g. your soul (which we have some reason to think exists, given that the Rift works at all); after you come back, maybe your body could be gradually replaced by real matter as you eat food and it integrates into you. It might just be normal water for meat-people.

Point being, we can test these things. We'll presumably encounter the afterlife ocean again at some point even if it isn't there when the rift opens in Leaf, and we'll have the chance to do experiments on it and see what properties it does and doesn't have. Until then, I don't think there's much point in speculating about which of the many magical mechanisms it could be when we have no way to distinguish between our hypotheses.
 
I'm not sure this is a good idea. We were hilariously overpowered at the Rift and in Leaf we'll have all the chakra in the world at our fingertips.
We were hilariously overpowered for dogpiling the one weakest Akatsuki.

Here, we're probably going up against Konan+Kisame or Konan+Itachi, which is a much more serious fight.
And Oro is probably our best hope for a Konan counter. We don't have one, and Naruto/Tsunade probably don't either.
 
We were hilariously overpowered for dogpiling the one weakest Akatsuki.

Here, we're probably going up against Konan+Kisame or Konan+Itachi, which is a much more serious fight.
And Oro is probably our best hope for a Konan counter. We don't have one, and Naruto/Tsunade probably don't either.
Assuming they're still in Leaf. This is days of progress moving the Rift wasted on the chance she is and on the chance Orochimaru can help.

I am pretty unsure this is a good idea. I want him moving the Rift ASAP
 
Assuming they're still in Leaf. This is days of progress moving the Rift wasted on the chance she is and on the chance Orochimaru can help.

I am pretty unsure this is a good idea. I want him moving the Rift ASAP
It's likely that the main action will go down before the Oro can get the rift to Leaf, let alone before we can exploit it as a resource. (Assuming he even brings it to Leaf at all)

A few days slower on the rift is worth it if it secures us Oro and Manda onhand during the critical period of massive S-rank battles. Fishing Jaraiya out in 2 months Vs 2 months and 6 days isn't a big deal.
 
We were hilariously overpowered for dogpiling the one weakest Akatsuki.
And a second one - any of them - might well have been deadly.

We didn't have anything to defend, we had a massive alpha strike which we may or may not be able to replicate, and we deployed a bunch of unknown and arcane capabilities.

There's no kill like overkill.
 
Not if Akatsuki slips the net somehow, locks down O'uzu and prevents Orochimaru from fetching the Rift for the duration of the standoff.

I think it's not worth it
This can easily be mitigated just by moving the rift further away than they can feasibly lock down, just not all the way to Leaf. And, if they do stall Orochimaru for long enough for it to matter, it's possible that Hazou can research the rift-mover runes and take over.
 
We snuck forty people to within a mile of their secure facility. Oro's an S-ranker with a stealth artifact, he can get to a location 20 or 40 miles away from a probably-unguarded crater in the ground.
They weren't expecting us and it was still rolled. If we had missed that roll we probably all would have died to a runic failure. This is not something we can depend on.
To be clear (I am not faflec), the rift only shrinks when someone exits? So no one risks getting trapped on the wrong side
Just stop going back in when it gets small
Missing semicolon between "capabilities" and "same"?
Yes, thank you
This can easily be mitigated just by moving the rift further away than they can feasibly lock down, just not all the way to Leaf. And, if they do stall Orochimaru for long enough for it to matter, it's possible that Hazou can research the rift-mover runes and take over
Yeah 20 miles is just too little. It needs to be off O'uzu.

I am not opposed to this but it trades off promptly assaulting Leaf.
 
They weren't expecting us and it was still rolled. If we had missed that roll we probably all would have died to a runic failure. This is not something we can depend on.
They had sentries, cleared the approaches, built a sealing fortress, and an S-rank airborne spotter. Don't know that they could have done much more to be prepared.

Yeah 20 miles is just too little. It needs to be off O'uzu.

I am not opposed to this but it trades off promptly assaulting Leaf.
I think you're dramatically overestimateing the feasibility of locking down a huge area against a ninja, especially when they have no reason to believe anything of value is present, and urgently need their resources over at Leaf.

But that's fine! There's a little island 40 miles south of O'uzu that where we can burry the rift, no problem! Does that work for you?
 
All according to Orochimaru's Plan I guess.

He makes Leaf and Akatsuki fight each other and screws of with the Rift becoming the God of the New World. New wonder he killed "the boy". He can just grab Kabuto gain.

Here, we're probably going up against Konan+Kisame or Konan+Itachi, which is a much more serious fight.

Oro was off last time, who knows exactly why.

But more serious, as long as they haven't gotten news from O'zou they will likely retreat, it just means we can't just kill another one of them.
 
Oro was off last time, who knows exactly why.
Those guesses we based on Sasori being a bad fit for an infiltration mission(no chance to research, defensive entrenchment don't mix with staying low-profile in a city, and he'd have a has a bunch of puppets that take up space and compromise stealth.), and assuming Itachi and Kisame won't be paired at a time when Akatsuki really need good communications.

But more serious, as long as they haven't gotten news from O'zou they will likely retreat, it just means we can't just kill another one of them.
Thus Force Dome and Iron Earth. They're trapped inside with us.
 
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