"...Hell is tacky?"

"Yeah. Everyone making stuff all the time and no good way to get rid of it. And it's mostly built on a giant plane of gold."

"It's just called that," Nika clarifies for Miles.

"Oh, okay," he says. "Do they not have waste chutes in Hell? I guess if you made, like, a house, it'd be hard to put that down the waste chute..."

"They used to use lakes of fire and now they use black holes. It's still tacky."

"...Black holes as giant waste chutes." He contemplates this vision. "Wow."

"They don't have to be giant, you can make small black holes."

"If you just wanted a small one I think a waste chute would probably be better, molecular disintegrators are dangerous but I think they're less dangerous than black holes..."

"Maybe they haven't invented those. There's different stuff different places, like this is the only world with wormholes all over the place."

"Really? How do the rest of them get between planets, can they all teleport - no you said the teleport was restricted - "

"Warp has warp engines, Cube has z-space, Space Arda has lightleapers - my alt invented those! - Edda has a bunch of different ways but they're mostly magic - most places don't have FTL yet -"

"...Is it just me, or is it really weird that all those places have different FTL?"

"The only one that could have been invented anywhere is lightleapers if I remember right..."

"Yeah, everything else depends on local physics. And lightleapers have more technological prerequisites - we got them a couple thousand years after electricity, though Elves're also slow so that's a bit misleading on its own."

"And local physics are different everywhere but people can still travel between worlds without exploding?"

"Physics doesn't differ, or else our interdimensional transit mechanism somehow filters for worlds with the same physics. The gravitational constant and the speed of light and the charge of an electron and so on are the same everywhere. But, like, Warp has dilithium and no one else does, Cube is adjacent to z-space and Cube's interdimensional travel works everywhere adjacent to z-space, you seem to be the only people with wormholes..." 

"It's kind of cool being the only people with wormholes, I guess."

"I named the world Nexus."

"That's a good name!"

"I wonder if you have aliens." He checks.

"It'd be really cool if we had aliens!"

They do not have aliens.

"...nope. Sorry. No one's sure why some worlds have lots and some don't."

"Oh well."

"I wanna find out!" says Miles. "And I wanna learn the magic that made the teleport spell and all that."

"You can't really learn it, so far only Loki's gotten anywhere and if anyone did it would probably be with a supercomputer not, like, personal ingenuity. But I'll make you the necklaces, once I figure out more things."