...you know, Dolphoshi, your posts are rather hard to read. You should separate your posts into separate sentences and short paragraphs.
I'm going to suggest two things
first that we said that the ink is 4D so it could be that the ink just collapses on it's self but that leaves a lot of holes and even more questions
That the ink is 4D was mentioned earlier, but I see nothing wrong with restating it. I don't think that the ink can collapse on itself, however.
While on the subject, i suspect that ink stretches farther into the 4th dimension if there is more of it. There might be some equation giving ink depth a relationship with ink surface area, but We aren't able to find the equation itself.
second (and more likely) is the ink is unstable without some of the things is the body (ei carbon or other elements stored in the body) (this would explain a bit on how the ink hurts other inklings) and likely breaks apart from the oxygen in the air (because oxygen is a very electronegative element) but reactions take time and will have a byproduct on the top protecting the ink below so that is why the oxygen doesn't destroy it on the spot unless a really powerful wind pushes it off the ground (most of the bosses in the single player do this) then it must react quicker because there is more oxygen in the air and the byproduct isn't able to surround the ink so it vanishes, this explains why the ink is always contained in air tight containers (also how the splat bombs and suction bombs explode and also why the mines don't last very long, as well as why most of the inkstrike doesn't end up on the turf) and remember they have a seperate ink ink so that could be where it is stored until it's need to fight inklings (or octolings off with)
That the ink reacts with oxygen would explain why the ink evaporates, although it causes a number of other problems; specifically, why inklings themselves don't evaporate.
I find it hard to imagine how ink could form a protective coating due to reactions with oxygen, have that coating taken off, and then not form a second coating.
Of course, the idea that inklings have organic structures holding their bodies together is something I have proposed before, and actually forms most of the mid-region of the fluidity vs solidity spectrum. I never used those exact words, of course, but the idea remains nearly the same.
Anyway, you mentioned the idea that the ink reacts with enemy ink. I find it difficult to describe.... but I agree and disagree with this statement at the same time.
I don't think ink is particularly reactive: otherwise, it would do some damage to whatever it touched. When the ink covers grass, concrete, metal, and plastic, these things are not corroded by said ink. On the flip side, ink would have to have some reaction with ink of a different color, or inklings could not be splatted by enemy ink.
Given that inklings are able to walk in enemy ink until they tire, I expect that part of the reason that ink weaponry is effective against inklings is because it is combined with physical force.
it seems that ink has the ability to tear ink-based constructs apart, but it cannot seem to damage anything else.
I'm not sure I can adequately explain this...
It seems that ink does have some tendency to dissolve other ink. this would suggest a difference in structure between different colors of ink, but inklings can change color with no apparent side effects. It may be that ink does contain organic structures which attack foreign ink.
i feel like I'm just filling this post with the same information repeatedly, so I'm moving on.
Perhaps the scientists behind the Squidpeople Creation project (were we really taking that seriously?) spliced in some sea star DNA into the sections that controlled organ/tissue growth, likely after years of research showed that the above was feasible (if rather time consuming).
I'm actually not sure how seriously we were taking that. why not start a poll?
All the contributors to this post should state how seriously they are taking the idea of squid creationism by humans? I think it needs some in-game evidence before we can base our speculation on it, but it would explain how such a bizarre species appeared in such a short time.
Humanity doesn't necessarily have to have finished the project, however. They may have simply created some organism which had the right biological structures to evolve into inklings... perhaps as part of some research on tissue regrowth and change?
...the alternate humanity's fault theory is a combination of nuclear waste and people who don't understand how nuclear radiation works.
I'm kinda curious about how the ink, being purely defensive in its original purpose, would over time integrate itself into the immune system. What you're suggesting sounds to me like they wouldn't need white blood cells, since the ink would do that well enough anyway. Perhaps it just eats up anything it doesn't recognize?
Ink obviously doesn't corrode inanimate objects... or at least, not visibly. But the idea that ink tries to eat foreign substances might explain why inklings can be splatted via foreign ink. If this is the case, then you are right; ink itself might function like white blood cells. I hadn't really considered this before now. Ink would probably try to dissolve ink with different biological identification markers or whatever. when inklings change color, they also change their bodily identification markers to match those of their teammates- probably with the help of said teammates, as it would be difficult to match markers with someone when you don't know what their markers look like (figuratively- they would be microscopic, I'm sure).
Come to think of it, that sounds a great deal like ant pheromones. why didn't we draw that connection before?
anyway, this idea states that ink acts as white blood cells, which means that turf wars would be able to spread the inkling equivalent of HIV/AIDS (in which the immune system itself is attacked, preventing it from protecting the body from other diseases.) ...that's a little scary.
This is kinda why I'm still struck by the decision to make hair out of them. They're so essential for a squid's everyday life... if they've a purpose still, I can't imagine that the boy Inklings get much use out of 'em.
You're right- those tentacles aren't in a position to be of much use, and the fact that male inklings often tie them up reinforces this. In theory, they could be used to carry objects large enough to be held by the sucker, but I don't think most inklings carry things like that very often.
Perhaps a more likely use of these tentacles is as a way to catch the attention of the opposite sex, like the bright, vibrant feathers of many birds.
And perhaps they could also be used as a predator decoy- many animals are able to intentionally detach one of their limbs to distract predators. Since inklings don't use their tentacles for much, they would be free to shed them to escape a predator.
If the ink evaporates, does that hint at some amount of water being present in the ink? How it got there is a mystery, of course, but neither melanin nor mucus seem to evaporate readily. If there is water present, then I guess there's no special reason as to why it does.
I'm not entirely sure what you're trying to say here. All ink and paint contains water, and all living things need it. Even if inklings lie on the very end of the fluid side of the spectrum, they would still need water to prevent themselves from drying.
The issue with falling in water is that this gives the inklings too much water, and their bodies disassociate.
Inklings would probably have to spit ink in water before drinking, although this whole issue is meaningless if inklings are on the solid end of the spectrum.