He's not happy, as he sketches out the signs and sigils. He generally isn't, these days.
He ran out of better options with the last of the cows.
He finishes the circle.
"I hear Thomas Jefferson made terrible macaroni and cheese, do you want to try it in a better incarnation?"
"Well, I don't want to go nuts and start resurrecting a thousand people a day, but we could stand to have a bigger sample size since you appear to be fine. It'll be more efficient to cut down on causes of death - material scarcity and diseases and so on. I already triggered the process that will lead to the extinction of the malarial mosquito, everything else is going to need some social engineering probably."
"It takes a few mosquito generations and it's possible I undershot or missed a spot but yes."
"He knows about inoculation, he has surviving writing on the subject. Vaccines get very popular, safer, and more effective, and work great. - Smallpox in particular was eradicated from the face of the Earth. Formally declared in 1980, last case in 1977."
"--Which would mean that smallpox has been eradicated from your Earth but not ours," Lucy says, noting the dates. "How did that happen?"
"Really aggressive global vaccination and quarantine campaign! It was before daeva were even common knowledge."
"Yes. I can skip a lot of steps because I can travel anywhere in the world very fast and make arbitrary material objects, and it might be I can shortcut a lot of things if it turns out to be a good idea to teach everybody how to summon more daeva. But I can't just eradicate a carrier species for every ailment."