"Oh, history nerds? Altruists? Some demon who wants kids and would bet on being able to adopt some here?"

"Demons can't have children?" 

"Daeva can't reproduce. Demons are the ones I can write to from here."

"Daeva can't have children," he corrects himself agreeably, "why not?"

"The oversimplified answer is we don't have the necessary ingredients, but that's not the real problem, since demons at least could make them - daeva are indestructible. I could go fly into the sun, and while I would have a hard time getting out again without harming the sun I wouldn't be more than moderately uncomfortable in the process. The way this works has to do with our concept of the boundaries of our bodies: I can cut my hair if I want, but you can't cut my hair if I don't want. If you decide out of an impulse to mad science to graft an appendage onto a consenting daeva subject who then agrees to be knocked unconscious so you don't have to worry about them deciding that actually they like the new appendage and want to keep it, the appendage dies, because it's not incorporated into the thing that's holding us together. Demon women who've tried just sticking a zygote where it would naively belong have had one of two things happen - they incorporate the zygote into their self-concept and it stops growing, or they don't and it dies."

"Bizarre...but in an oddly sensible way." 

"Yup!"

"Well, if we can empty the orphanages in exchange for ushering in a utopia of unlimited material wealth, I can't think of anyone who wouldn't be better off." 

"I know, right?" Wag wag. "I should expressly CC some of those interest groups, actually, that might get me a quicker response and there are just orphans all over the place before folks really get the hang of contraception..."

"Contraception?" 

"Assorted methods of preventing pregnancy."

"We do have those. I take it the future gets better at it?" 

"Much better. More set-and-forget, fewer side effects, more reliable."

"How does that work?" 

"Pills, implants, reversible surgeries that are a lot more hassle-free when there are angels around."

"Ahhhh." 

"I have my medical quals if you want something along the lines."

"...Probably wise." 

"All right, an implant in the arm's easy, it'll take effect in six hours, let me know if you have any side effects - pick an arm."

He holds out his left arm. 

Cam pokes around till he finds a good spot, then numbs it and adds an implant. "There you go."

He looks at his arm and prods the spot. "Thank you." 

"Anaesthetic wears off in fifteen minutes, it shouldn't hurt after that but if it does and it's bugging you I can hit you with another dose no problem."

"I'll keep that in mind." He lowers his arm and nods approvingly. 

Snort. "Enjoy. I'm gonna resurrect another guy, then read more about early Communism and Naziism until I have an idea of what metaphorical butterflies to step on."