"How do those work -"

"Uh, do you want me to explain the computation, the projector, the underlying knowledge base I've been searching, the messaging protocol between the computers, the brain interface, or something else - I know the answer is 'all of them' where do you want me to start."

" - computation, then the underlying knowledge base -"

"Okay! Comp sci 101!" And he starts with logic gates and goes from there as they head to her house.

She's a terrible driver; some of this might be attributable to the fascinating conversation. They get to the house. "Girls! Time-travellers!"

"That's a new one." She is balancing two tiny babies on the back of her giant dog. "Hi, time-travellers!"

"When did they time-travel from?"

"Elsewhen," says Cam. He carefully does not look at the giant dog. He had forgotten there was going to be a giant dog.

The toddlers on the giant dog steer her towards the time-travellers; she doesn't take much steering. She bounds over and eagerly sniffs them.

"She doesn't bite," she says to Cam. "The babies do, though."

"Do not," the baby in front objects, and topples; Huan gracefully flops sideways to catch her.

"I wouldn't dream of accusing any of them."

"Do too!" cries the second toddler, and clambers off Huan to try to touch Cam's wings.

And is grabbed. "Hey hey hey, those look delicate -"

"They're not, they can touch them."

She releases the babies. The babies touch the wings. The babies are delighted about the wings and say so with high-pitched sounds that mostly only their siblings can interpret. Tyelcormë combs Huan's hair back flat. "Hi!"

"Hi."

"What're the wings made out of?"

"Bones and skin and blood vessels, nothing too weird."

"Do you have to overhaul your entire circulatory system to actually fly with them -"

"No, they patched in all right."

"Guess what," Fëanáre says to her gleefully. "Computers!!!" And then a very fast-paced explanation of what those are.

They can each have one if they'd like after the brain surgery is explained. Tyelcormë's can have her alphabet as default.

" - that'd be great. We don't need to have specific things to take care of them?"

"I can probably figure out how to convert your household electricity into something that can charge them."