"Thank you, Vasil, those examples were enough to understand what you meant."

"I'm going to want to practice speaking this language without magic help, if you'd want to help with that later I'd appreciate it."

"This unit would be satisfied to help."

"You keep saying 'this unit'—are there other units?"

"This unit does not possess information about the success of the project, but it was meant to be one example of several."

"Kaede's books might have something about that somewhere - but your creators are nowhere to be found and probably long dead, unfortunately, so we don't know."

"This unit would find the information on their causes of death useful."

"You can ask questions and uses sentences like 'I'd like to know something,'" Kaede comments. "And old age, it's been hundreds of years, I think we mentioned."

"...this unit did not possess the information that humans died when they became too old."

"Humans die from a lot of things. Old age being the most inevitable."

"This unit—" Pause. "Is there a way to prevent this?"

"Magic, but it does not scale well."

"The non-age causes can be fought more scaleably. Peace and prosperity reduce violence. Medical care treats diseases and even age, to an extent. It's too bad we can't increase the amount of magic available easily."

"Yet. I'll figure it out."

"That would be a thing. Two out of two kinds of magic we've seen so far run on inherently-limited resources with only a few people getting them, though. I wonder if there's a genetic trend for your magic? Or did you already tell me there's not? I think you did."

"No trend whatsoever, I just have a theory that it might be possible to give a nonmage the ability to produce mana and then you could turn everyone immortal."

"People have been trying things to make more Witches happen, but science as a category, as a big thing that anyone can participate in and gets funding and taken seriously, has only really been a thing for like a decade in my world."

"It's been a thing here for longer but it's typically rather secretive."

"Folk want to keep their trade secrets or whatever? Oh, it occurs to me - if you keep Witches young, they will keep producing such relatively large amounts of mana. I'm not even at my peak yet, that'll happen in about four years."

"......that is interesting."

"There's lots of theories about why Witch mana works that way - but it's a known fact that de-aging magic restores one's mana production. Usually. There are wild magics that will de-age someone once in a while is how we found out, but it's, again, not scaleable."

"This might be, though. I'll need to do maths to your mana throughput but... it might be."

"If I find a way back home. They'll probably send a teleporter after me when a slot opens up in their super packed schedule, if any of them can hop worlds without ever having met me..."

"Did you guys know about other worlds?"

"I don't know what the boffins know, but the idea wasn't common knowledge, at least."