"Well, they don't have to sleep. Us either but most of us do."

"That's strange. Sleep is another of those important things. Magic can replace it but you have to design that in deliberately and trigger it somehow, at least that's how it works where I come from."

"Our thing is that we don't get very tired. We get a little tired, and then just not any more than that, it's not hard to push through it and it goes away if you take caffeine."

"Alright, I guess that's just another one of the things that's different about my world."

"I do think living humans get weird about it if they don't have a day cycle."

There is a Hell Room. It has a model of the gold rectangle and an exhibit about chiplocked computers and a model train with hundreds of cars and more sample wings mounted on the wall.

Are the wings really that substantially different? It feels weird how much of a focus on wings there is.

The golden rectangle is weird but also neat. She doesn't quite understand computers well enough to understand why chip-locked computers are important except for some vague notion that lots of people care about privacy.

The wings have a lot of variation! The fairy ones are the prettiest but the labels explain that this one is a racing model, that one turns out not to really fly, etcetera.

Chiplocked computers are also great because they let you control your computer directly with your brain, it's a substantial usability upgrade.

Right... most people don't control the things they interact with that way already.

Indeed.

There are roomsful of Things abandoned or donated by their original Limboites. These exhibits are interactive; you can play the grand piano or pick a flower off the rosebush if it has one at the moment.

Ooh, she knows how to play the piano. She'll play a piece to see what this piano sounds like.

Ah, like a normal wooden piano a bit more resonant though.

The piano is slightly but not very out of tune.

"Huh... this piano doesn't sound quite right. The notes aren't really what I'm used to. I wonder why."

Akira has never in her life encountered pianos that weren't perfectly tuned.

"Sign says it's usually not in tune. It can't get all the way out of tune but it can get a little and I guess they don't have a tuner by all that often."

"Huh, I don't think it occurred to me before that instruments could be tuned like that. All the pianos I make are always tuned the same way and most of the other instruments are more magical than that."

"Huh. I guess that's of a piece with everything else you've said."

The rest of the museum is devoted to mortal-world stuff. Imports from Hell describe its history in a way suitable for catching up if you were last alive three thousand years ago or learning things about three thousand years ago if you died yesterday.

That's very helpful. She reads attentively. "Do people know who was responsible for Revelation? I guess it would be listed here if they did."

"Yeah, we don't know, I think it was anonymous on purpose for some reason."

"Oh, maybe there were people who wanted summoning to stay secret so they did it to protect themselves."

"I guess that'd be one possible reason sure."

"I suppose if people knew why it probably wouldn't still be anonymous."

"Yeah, we can only guess till it gets turned up one way or another."

"That sounds about right. Random question, but do you know how big concordances are?"

"About this wide." She gestures at the shipping container they're standing in. "And two or three times that long. They get the trains started way back to build up speed and time them very exactly, so they can send as much through as possible."

"For all of them or just the ones with hell?"

"They're all the same size."