[set a couple of wireless towers around that get signal from the underground tunnels, most of which are duds, then the cables are all underground and people don't have a way to find them without some pretty thorough digging]

[...Zash, why are you in this call]

Nai'd kinda been trying to avoid him because they once again parted on not the greatest of terms and he's anxious again about that.

[little brother you are literally the only person on this planet who can hide from psychic senses and you chose not to. you are lying if you tell me you hadn't kind of hoped that I'd show up.]

Well now Nai is hiding again.

[Yvette, love, can you tell my dumbass twin to stop being a tsundere and take the teasing like a good sport so we can resume the practicalities?]

She does, of course, along with defining what a tsundere is for his convenience and communication.

[That's a good idea, though, I think that'll work.]

He is not a tsundere.

Yes he is.

He's still hiding!!! How is Zash—he can read Nai through Yvette. Oh fuck it. He unhides.

[the greatest protection a secret can have is its existence also being a secret. if there are a bunch of wireless towers around people will know that there must be cables somewhere and go digging]

[True, but there's a lot of ground to dig through, and really... is there an alternative?? I know the ships could communicate with each other from great distance before the Fall, but I think if that could work on a planet we] by which she means humanity, not the three of them, [would have done it by now.]

[it can work on a planet. did work on a planet. there were satellites...] (Quick mental overview of what satellites are.) [but we do not have the industrial base. we barely have enough of it for these towers. we'd need to make them from scratch.]

[we wouldn't need rockets though. you could just fly up to the stratosphere carrying them]

[Oooh! Satellites!!]

She has just been introduced to the concept, but she is delighted with it and loves it already. Is building the industrial base for satellites harder than building a bunch of towers, fake and real, and also communication cables underground? Because it sounds like they could just put the industrial base in February and then have them use their bullshit to put the satellites into space.

Yeah, satellites are like really really hard to make and maintain and make work, you need a very extensive mesh of them and they need extremely precise construction with difficult-to-produce materials plus you need a certain networked base on the planet to communicate with them already aaaand Nai should not try to get into the nitty gritty details of it all. Towers are definitely more feasible and probably a stepping stone even for if/when they go the satellite route.

[love you, little brother]

Okay but they're super cool and also shiny so Yvette now wants them eventually!!! But yes they can do the more feasible route first and plan to have satellites eventually. Just!!! They're so shiny and neat!!!!!

Anyway is this good to move the plants into, are there any holes Nai can see in her contingencies? She tried to be thorough, but she is fallible and whatnot. (And easily distracted by shiny things. ~*~Satellites!!!~*~)

He's kind of not totally satisfied with the transition to much larger scale systems when humanity becomes much more sprawling and too numerous for them to keep track of but...

...he recognises that it's not reasonable to try to figure that out perfectly before even doing the small scale experiments and that implementation details can vary a lot depending on the results of those.

Yeah, pretty much. She's being honest about having plans for implementation in large scale systems, but nothing is concrete yet. And the entire thing will be focused ultimately on getting humans to not need plants anymore.

But that sounds like yes, plants are allowed to be put in their places? :D?

...yes. Fine. Alright. Plants can go.

(They are SO HAPPY about this they will HELP!!!!!)

........

He still has some feelings about this, but...

...he loves his sisters and he's happy they're happy.

Plausibly Zash should just carry them rather than Nai using telekinesis...?

No. He'll move them. It'll be quicker and safer.