"We don't know what most of the parts of the strings do. We know some. I'm not sure what the ones we know are. I know we got rid of some diseases."

Understood. Thank you. 

This actually relates to her next question. She saw in a book a suggestion to do translation of written work with knowledge magic by looking back at when it was written. Is that kind of thing something Iri can do?

"Maybe. It depends. Do you have one in mind?"

Could she do it for things Sheridan did in her world, or does it only work here?

There's a pause. "It only works here."

Well, that is a shame, but nothing for it. 

(She wishes she'd studied more genetics, but nothing for that either.)

Next question, unrelated - she got the idea that some mages can make enchanted objects. Can all mages actually do that? Are there limits?

"Not everyone learns how. Everyone could."

Can objects do the same thing as a mage but only predetermined ones, or something else? What kinds of things do objects of the various magics do? 

"I... guess so? They can do things like... control slaves. And play illusion shows. You can have windows that kill mites and flies if they go through." Vague shrug that she might be good enough at reading thwilit body language to recognize. "There are a lot of kinds of enchanted things."

Knowledge magic enchanted things? Inheritance magic enchanted things?

"There's knowledge magic in some of the slave bracelets. I don't know what kinds of things inheritance mages enchant."

Oh?

And, how does knowledge mage enchantment work? It looks like when xie does knowledge magic, xie gets the information in xer mind. Where does the information 'go', if it's an enchanted object?

"It goes in the spell. And then the other mage can make their part of the spell only do something if the knowledge part of it is a certain way. I don't know more details, I've never worked with other mages or enchanted anything."

Ah, understood. So it can only interact with other spells?

"It doesn't do anything to any spells. It's like putting up a sign, the sign doesn't interact with people."

But other spells can read it? Would that also allow another mage to read it more directly? 

Shrug. "I don't know, I don't enchant things."

She thanks Iri. She studies Hari and works on tide tables and the lecture.

What kinds of further things has she learned about this world through the not-video?