"As long as you're keeping an eye on them. What are the limits of the retroactive unconjurability?"

"It only makes that particular copy unconjurable, it's not helpful if the information has already been copied. It does work if you'd like, for example, someone conjuring for your complete written works not to find something. A Beach person has to read it, and then they simultaneously forget and erase the information in a magic ritual."

"Interesting. Probably not applicable on a wide scale then."

"Probably not. A separate implication of contact with Beach is that we can now if we wish go exploring for new worlds, something we were previously very sharply constrained in doing. The arguments for doing so are humanitarian - most worlds seem to be pre-industrial or early industrial, we can help them out, we could look one up with conjuration in advance and make sure we weren't biting off somewhere with extra complications - the argument against is that there could be extra complications you wouldn't find by that method, like if you'd looked this world up prior to Revelation."

"Looked it up?"

"Tried learning about it remotely via conjuration of its published works, models of the people who lived on it, and so on."

"Yes, I can see how that would be a problem. And summoning wait times would just keep going up."

"Yeah. Once we have a mortality intervention that isn't summoning it'll be a better option. We're contemplating trying some time dilation stuff to help with wait times but it'll be complicated."

"Can you give me a summary of how that might work?"

"We can stop time in a world if it does not have active interactions with other world - open circles count as active interactions. So in the Ardas, say, where we have the authority to impose and enforce a ban on summoning during a specific window of time, we could pause the world once there are no open circles. Alternate the Ardas and Godspring, reduce demand. The problem is that daeva might find it upsetting to take a three-hour job and come home two days later, and a single open circle anywhere in the dimension breaks it. We can stop time in all the worlds at once, except for Milliways, and we did that in handling contact with Beach - that's less disruptive, because no one loses time relative to others except the people authorized to be working in Milliways."

"I see; that sounds challenging. Speaking of which, I may finally scrape together enough time to go look at the place this week."

"We'll be delighted. - oh, you should know - Milliways has its own security system, which is magically guaranteed to be adequate. That's actually how contact was made with Godspring, some residents of Milliways were curious who could possibly be guaranteed adequate to take an unbound daeva and the answer was 'goldmages' - anyway, I don't expect it to come up but please don't shoot anyone for having an unsafe summons active, you and everyone else are perfectly safe."

"I don't habitually go around armed anyway," she says.

"I was not anticipating trouble but would have felt really terrible about failing to communicate on something so easily avoided. Anyway, I have a list of all Beach summoners by name for you, in case you want to also check for whether any of them die."

"If I go to Lilie about it she'll tell Rochelle and I'd rather have some time to think about how to tell her, but can't hurt to have the list."

List. "That's all that was on my agenda, is there anything we can do for you?"

"Don't think so. Have a great day."

"You too!"

And he asks about angel and fairy bribery.

"I'm not unwilling to try but there is the risk of making it more salient than it otherwise would have been -"

"Mixed strategy? Read their stuff to get an idea of how high risk they already are and how convinceable they'd be?"

"Sure, give me a dossier and I'll figure out who might be worth talking to. Or make one of my alts do it so I can make progress on the demons list."

His alts are asking Bar if there's a way to make arrangements that would let thousands of people request things from Bar at the same time.

That's technically a spatial problem, which is autohandled by the establishment, rather than a limitation on Bar's capacity. If they don't all need to be physically at the bar and people want to put ramps or a conveyor belt end or something on her she could provide things in response to prompts on a screen.

Great then they're going to try to identify all the worlds in the multiverse in desperate straits and if Tireh can figure out how to take passengers then she can jump to worlds, grab someone, bring them to Milliways, and thereby pause them. This is bottlenecked by Tireh having to learn enough things for an interdimensional jump so they'll only alert her to 'imminent destruction of planets' sized catastrophes, not mere genocides and so on. 

They can spare someone to look at angels and fairies. 

She'd like one of those memory necklaces to see how that goes. The blackmagery facts are usable but not that efficient and she has to clear them before they accumulate to anywhere near teleportation levels.