#but yeah. in the meantime i've only been showing small snippets and details about the iterators in cdss

[flickering-nightfall]

just asking, what if an iterator possibly gets too hot or cold? What happens if they can’t get to safer temps with out outside forces? What if they can’t get to safer temps at all?

Do you mean superstructures or puppet-bound iterators? I'm sure superstructures have a lot of failsafes to deal with temperature fluctuations, mostly via processing water intake. They're living saunas! They probably have an incredible resistance to both hot and cold, as evidence shows.

I'll talk about puppets here, but if you meant superstructures, well... a lot of what I'll say here could apply to superstructures too.

(For puppet-bound iterators, I am referring to my AU CDSS)

For heat: Puppet-bound iterators, like their former superstructure bodies, run hot and need to stay hydrated. They rely on liquid coolant that runs throughout their bodies. Ruptures in the coolant system are one of their many common problems, but with medical aid, they're not too serious. Many cases are self-healing, or the rupture will seal itself off and reroute around the blockage - like with collateral circulation. Leaks into essential systems are more of a concern than the actual loss of coolant. As long as they stay cool and drink water while waiting to get fixed, they tend to be fine.

If they are stuck in a hot region and can't escape, they'll suffer from dehydration, heat stroke, fried components, damage to organic tissue, seizures... pretty much what you'd expect. As a superstructure, Moon probably suffered from all this leading up to her collapse.

For cold: They're fairly resistant for a few reasons. One is the antifreeze in coolant. Another is the heat that they naturally produce. I'm thinking they have silicone-based skin, which is very cold resistant. They have hemocyanin, which tends to function better in extreme cold than hemoglobin. (Hemocyanin can also work at hotter temperatures. I have like a whole essay about this that I still intend to post lol.) However, the puppets have been modified to have more flexible and sensitive skin - dexterity in exchange for some durability. They're more susceptible to the perception of cold than they would be if they were a still a superstructure. Many of them also dislike snowscapes on principle, because they've been freezing their decaying metal butts off for centuries by the time CDSS happens.

Iterators in both forms are very moist, so if it's cold past their limits, their mechanical components will freeze. And like with hypothermia in fully organic beings, prolonged time in extreme cold will lead to tissue death and organ failure. Superstructures with fractured exteriors (direct exposure of internal parts to the cold air) are especially susceptible to this.

Misc theory about superstructures: Moon's superstructure was able to stay intact into Saint's era because she collapsed straight down into the water, preserving most of her shape. The canyon water could have provided the pressure and circulation she needed in the absence of gravity cores, as well as protection against land pests and insulation against the cold. Remnant slag could have her generate excess heat as well, which would keep the water surrounding her unfrozen. In a way, dying like that could have helped her live longer?!

Thanks for the question anon, this was very fun :P