"I mean how do they work like what exactly happens if you cast them, like, if Miles breaks his leg and heals himself how long does it take and does it hurt -"

"Instantaneously and no it doesn't hurt."

"Is the teleport safe or could you land in something?"

"You can't land in a solid object, you can land in a sun or in vacuum or way underwater or something."

"How long would it be before we can have these?"

"Dunno, I'd need to look it up -" 

He makes his computer. He looks. "It's about 2000 hours to make an eidetic memory necklace."

"...wow. Can you do them in batches?"

"No, we've been trying to find a way to do that for ages, this is also our immortality solution and that one they've got trimmed down a bit but it's still long."

"Maybe I am a useful kind of magic. But I don't know how to find out, we don't even know where I came from, I'm very mysterious."

"Oh, that I can probably find out." Surroundings at Nika's birth -

Some vaguely institutional room with a uterine replicator in.

Broader surroundings -

Vaguely institutional building.

Even broader.

High-tech human-architecture town?

"Do you recognize this place?"

"No."

Street signs in this town?

The streets are named things like Oak Drive and Thirteenth Street!

"Is this world an Earth or is it like Warp where humans settled lots of other places -"

"Uh, there is an Earth but this isn't it, this is Barrayar."

"But you speak English - how many planets speak English -"

"Lots of them, I don't know exactly. Barrayar speaks Russian and French and Greek too."

Sigh. What's the planet Nika was born on -

Earth, looks like!