"They accumulate microscopic defects. I mean, it's probably better than not being vaccinated against things, I'll give you that."

"I'm not sure why we don't use reusable ones - might just be the price. I'd rather not wait on driving down the cost of steel production a bunch but maybe I can get it affordably as is. Or if there's a reasonably sized equipment to produce them cheaply I'd take that."

"I can maybe get you a usable model of stuffprinter, though hypodermic needles would be a very weird use case, they're mass produced and for that people in my world summon demons, stuffprinters are for one-offs."

"I think if people found out I was regularly summoning demons to produce needles they would freak out and maybe, I'm not sure, stop using vaccines indefinitely or something."

"Right, I'm just saying, it might be kind of hard to find a model of stuffprinter from my world that will do well at making hypodermic needles, people mostly use them for costume pieces and stuff like that where it's likely that nobody's already summoned a demon, gotten a batch of ten thousand made, and put them on the open market."

"Maybe there's something pre-Revelation that would work? I'm not sure how your economy looked then. Worst case I can use my world's needles until someone figures out how to do better."

"Pre-Revelation had single use hypodermic needles but I don't know anything about how they were made and whatever it was might be hard to get through your door. ...would nasal spray versions be too weird for people?"

"Hm, I could probably sell people on nasal sprays. Might be easiest to be honest - people don't like needles even when they know it's good for them."

"Quite. And some can be taken orally, polio you can do that way. I don't know if anybody's actually reworked things like smallpox that got eradicated early on for non-injection modalities, though."

"We already have the smallpox vaccine, though I'd be happier for it to be easier to scale and export. Uh, do you know what you'll want in return for all this."

"...this is what I would be doing recreationally, more or less. I can't go with you to your world, I've got obligations in the one I came from with the Elves, but it's not like making stuff runs down a limited resource."

Lucien is torn between wanting to take this at face value (it makes perfect sense to him!) and finding it deeply suspicious that the interdimensional demon with a mind affecting aura would be so helpful.

"What sort of obligations to the Elves, if it's not rude of me to ask."

"...I can resurrect them. Only them and orcs, they have special properties that mean the body's all they need, I can't make minds."

Lucien.... Blinks. Several times. 

"Umm. Resurrect then with what sort of constraints and costs? Are they sapient?"

"They're sapient. I can do them in seconds, it's just there - were a lot of them - it really really won't work for humans though."

"Does it work on them repeatedly? Are there side effects?"

"I don't think I've ever had to resurrect the same person more than once so far but there's no reason it wouldn't. I can't restore in-progress pregnancies."

"I can do human resurrection - it just requires the death of too many sapient people to be worth it generally."

"...oh. Well, then I guess if you had a demon and a bunch of Elves and a Silmaril you'd be all set, but I did not bring a Silmaril here.

- just humans?"

"Should work for any sapient life?"

"Do you need remains or to be near where they died or - anything -"

"Nope."

"There's about a million - gods - dead -"

"I am probably against resurrecting evil gods but otherwise I am happy to help resurrect them."

"Not the evil ones. The evil ones are alive. It's - it's what he wanted more than everything else."