"New languages. She speaks every one spoken on this continent but there's only really a few and they're all related. Entirely new ones without a common ancestor? She'll hardly be able to contain herself."

"I only know the one. Well, I'm only fluent in the one, I've picked up little bits of a couple others."

"Then she will bully the Valar for portals to your world so she can learn the others."

"That could be handy, if she's any good at convincing them to do things."

"She has no interpersonal skills at all but neither do they, it is guaranteed to turn out interestingly."

"...I'm not sure interestingness is the criterion I want to aim at for something as important as 'do Valar-controlled portals to my world exist and if so what is done with them'."

"I understand. But it'll take twenty Years of maneuvering to get something uninteresting and agreeable."

"Well, if I don't get ahold of a mage somewhere in there I'm not going to live that long, so point taken..."

"That short? That's horrifying. I bet I can talk a Vala into fixing it for you, even if it's not wise to ask them to just go handle your whole world."

"Humans live maybe ten of your years unassisted and I'm about a quarter of the way through that. I was planning on getting a mage to de-age me when it became a problem."

"Does everyone do that?"

"Aren't enough mages. There would be if everyone who could be a mage was and everyone who was learned de-aging, but they don't."

"Everything that ages ages ten times slower in Valinor. If we can talk them into extending that effect to your world -"

"...it would complicate agriculture very badly."

"Hmm, fair. Our crops take exactly as long to grow as the Valar please."

"While most humans do die of age-related causes there are also some who just literally don't have enough to eat and that would go up if there was suddenly ten percent as much food."

"...we can export food. How much would you need to fix that -"

"Production isn't actually the bottleneck, transport is."

"Hmm. ...no one's in a hurry, here, so we don't have fast transport, unless we can get the Valar to do portals in a pattern that allows for fast travel around the world - I doubt they'll let large populations of humans come live in Valinor but we can do whatever we want in Endorë, maybe there's a way to set up something there -"

"...and it's not a technical problem so much as an incentive problem, we can get things wherever on the planet pretty briskly even without mage assistance but if you recall the thing about the standard store of value traded for food..."

"Some people don't produce enough value to buy the things they need?"

"Exactly. And there are organizations that collect donated excess for the purpose but they have various logistical nightmares and even the simple 'literally give the poor people money' option has problems in execution."

"How does one produce a lot of value in your world, what sorts of skills or trades or magic -"

"Most applications of magic pay exceptionally well because it's so rare and one has to encourage people - who are around twelve years old, which is early adolescent in humans and not an age known for long term altruistic thinking - to go through frankly very unpleasant and tedious training procedures to be able to use it. Finance - various arcane tasks to do with fiddling with the economy - also pays well; so does nonmagical healing and helping people navigate the legal system and - at the very, very high end, not at all for less famous amateurs - various art."

"So our magic might be one way to do it - what does go wrong if you just give people the exchange units so they can acquire things they need, are they badly governed in addition to that?"