Someone comes into the main room of Milliways.
Her long, pointy ears twitch a bit as she looks around in confusion. She glances at a - computer? That's probably a computer of some kind, though it's decidedly non-standard-earth-design.
"No!" both Epime and 'Sidora say at the same time.
"And you wonder why people liken you to a mad scientist," Epime continues, shaking her head. "Artillery for us was any of tank weapons," she holds out her hand to provide a holographic display of a tank. "Anti-aircraft weapons," the image changes, "or air support," the image changes again to an aircraft.
"Was there some variety of extinction event?" she then asks, honestly curious as to the loss of technology.
"...They're just bombs strapped to arrows, you light the fuse and let fly. Not more Sheikah tech. Though you might like the void arrows, they are Sheikah tech. And, yeah, a hundred years ago Calamity Ganon returned. But Sheikah stuff is older than that, nobody knows why they went away but Ganon's high on the list of theories. Your weapons all remind me of Guardians, which is fair enough I guess."
"Just because it is less technologically advanced does not make it any less interesting," 'Metheus says, holding up one finger. "It is interesting to see how different people approach and solve problems. May I inquire as to what void arrows are and what they do?"
"Most of the tech Epime just showed you is now obsolete and being repurposed to less...violent purposes."
"Purah makes void arrows from Guardian parts. They explode, sort of, but with a creepy sound. And they more or less delete everything within five feet of the impact point. Good to hear that you can repurpose weapons like that. Means you might not need them anymore."
"We don't," he doesn't sound as happy about that as you'd think someone talking about a lack of need for warmachines would.
"I suspect you do not know the story of Pandora's box," Epime says carefully. "The gods created Pandora, the first woman, and gave her a box, telling her to never open it. Curiosity however overcame her, and she opened it unleashing all evil onto the world. But also hope." She falls silent, although it doesn't look entirely willing.
'Sidora sighs and takes over. "I'll spare you the exact science, but we managed to create a device to extract the essence of evil. Give or take. And it worked. Crime rates plummeted, mortality rates, wars seemed to peter out." He pauses, rubbing his hands over his face. "It took us a little while to realise that the near utopia we had created wasn't what we wanted. There was no hope left. No dreams. It's strange to think that such a seemingly small thing makes all the difference to the world. Everything felt...stagnant."
"Okay that. Is about the creepiest thing I have ever heard? ...It implies that Ganon, who is basically the essence of evil, is necessary??? To drive us forward or something?"
"It might be different for your world. And...Like. I don't know if it was the evil we needed. I don't have exact maths on any of this. It might be that we needed something to strive against - and if that is the case it may explain the seeming reappearance of Ganon in your world after a period of him not being around? I might be hearing what you're saying wrong. Or maybe we did trap something else when we got rid of evil and that's the cause? I don't even know what the right thing to do is any more. Because maybe humanity needed to figure out how to solve this without my intervention?"
"Ganon does seem to always come back eventually no matter how often he's sealed. But I try to leave this philosophical stuff to the princess. She seems to know what she's talking about, I'm just a knight."
"...Wait. I remembered something else about the princess! Progress!"
"...I am going to assume that lack of knowledge about this princess has been an ongoing thing rather than simple absent mindedness? Uh. No offence. I would also dispute 'just' if you're the knight they're trusting to resolve the issue?"
"I died fighting Ganon a hundred years ago. They put me in the Shrine of Resurrection. Woke up one year ago. Apparently... It couldn't resurrect all my memories. And it's not so much trusting me to resolve the issue as me being the only one who has any chance of taking it on at all."
"Well. I suppose recovering memories would be more complicated in a biological computer such as the brain rather than an electronic one... Uh, sorry, that is a rather crass way of looking at it. And...well, you already have experience fighting Ganon, it would make sense to have you do it again. But if your memories aren't all there, do you have the information you need?"
She sighs and the ears droop as much as they ever have. "Well, what went wrong last time has been patched. I remember the most important bits of the plan. Circumstances... Are different, but it should still work. The princess is - infused with holy power, or something along those lines, and I gather she and Ganon are still in a metaphysical standoff after all this time. I just need to come in and push the balance. Probably."
'Metheus doesn't seem to be quite as in tune with the emotional effect. "So, effectively, your job is to make as much noise as possible in order to distract this Ganon from the standoff so that your princess can get an opening to seal him up again? Fascinating. And really rather brave."
(Epime shakes her head in the background, and let's out a slightly frustrated, "Prometheus, really.")
"Right, well, I have to actually do some damage. Hence needing the Master Sword and to subvert his control on the Beasts."
'Sidora nods. "The Beasts? Like the...Guardians? Things like that? Just how much stuff does he have under his control?"
Sigh. "A lot. The Divine Beasts and the Guardians are most of the Sheikah stuff. The rest of them are relatively pedestrian monsters. Moblins, Lizalfos, Bokoblins, 'Wizzes, Lynels, Talus, Hinox, and a few different minor incarnations of Ganon himself. The guardians and the Divine Beasts are the most troublesome by far, though Lynels are hardly pushovers either."
"But there's also a problem of numbers if you don't have an army to fight back with," 'Sidora muses. "Because it sounds like he has an army. Lynels? What're those?"
"Uh, horse-monster? Except it has arms and a head and horns and magic arrows and is really big and muscular and aggressive. And tough. More dangerous than Guardians in some ways."
"That sounds... sub-optimal. I assume that they are capable of learning in a way that the Guardians are not?"
"I don't really know. I've fought a few, it's kind of hard to tell how smart it is? Not stupid like Guardians are though. It knew to dodge."