"Well, you could only live right on the top of it, right? It'd have to be enormous compared to a square to give you the same living space. I guess you could sort of build into the sides? Or underground, do you live underground?"

"No one lives underground, so far as I know. But I don't see how an enormous planet is inconvenient."

"So it's big enough that you have enough space on the top of it?"

"Yeah. And that might be how your planet is magic and mine isn't, if sphere-planets can work without magic and square-planets can't."

"Maybe. I guess spheres are pretty simple? But so are squares."

"A sphere is more resilient, though. If you take a piece of clay and make a solid sphere out of it and then you make a square out of the same amount of clay, the square breaks way more easily."

"What's going to break a ten-mile-thick planet?"

"I don't know, I'm not from your world and I'm not a natural philosopher, anyway."

"Well, having a square planet has worked so far."

"Right. With magic."

"Yes."

"Which my world doesn't have. As far as I know, at least."

"I guess. Weird."

"I think we've established that weirdness is relative."

"Yeah, yeah."

"Magic does sound nice, though," she allows, a little wistfully.

"I don't do a lot of it myself. Got an aunt and a cousin who're wizards though. Had a girlfriend once who was a witch. And another one who was a fire mage."

"What do those mean?"

"Wizards do spells with gestures and nonsense words that do whatever. Teleporting and stuff. Witches make potions like the headache thing. Fire mages do fire."

"I suppose I could probably have guessed the fire one."

"She was fun. My kinda dragon also does fire. Differently, but still."

"How do you do fire?"

"Dragons can all breathe fire, in natural form, right? Some of us like it better and are better at it, I'm one of those."

"Oh, like wyverns? Come to think of it, wyverns also fly, although they're not scaly."

"We don't have those. Maybe like wyverns? I don't really have room to shapeshift in here and let you compare."