"I mean, it's not really about the law, they sort of made their own laws back when they had an empire covering half the galaxy. It's more to do with all the murder and torture and slavery they were doing in their empire. That's evil, doesn't matter if it's legal or not." 

"...You didn't think you could make them stop? Or they refused to stop? What happened?"

"The wars were about getting them to stop." Dion rolls his eyes. "They wouldn't do it just because we said to, there were as many of them as there were of us back then." 

"And the only acceptable solution was to kill every last one of them?"

"Um. I guess, yeah. Otherwise they'd have just kept killing and torturing more people." 

"They couldn't be conquered and start following your laws?"

"Sith don't really do the whole 'following laws' thing. I mentioned how using the Dark Side makes you angry and paranoid and stuff, right? It's like—does your world have addictive drugs or are you going to go 'what' again?" 

"Oh, okay, so they're the kind of people who would all be enslaved or killed where I'm from."

Dion snorts. "Good luck enslaving a Sith." 

Then the implications catch up with him. "...your world still has slavery? Not legally, though, right?" 

"What do you mean, not legally? If it was illegal I'd call it kidnapping and assault."

"...your world has legal slavery," he realises. "Not of - wait, no, you're all mages - how do you even enslave a mage, anyway?"

"With command magic. What do you do with people who won't follow the law?"

"We...lock them up in prisons and let them out when we think they learned their lesson?" Dion isn't actually too clear on how the justice system works, but he doesn't care enough to look it up and get Valanda a better answer.

"What's command magic?" he asks, instead of doing that. 

"You use it to make people unable to take certain actions, like hurting people. Do you put people to work while they're in the prisons?"

"No, that would...that would be slavery. Unable how?" His voice rises and cracks on the last word. 

"Unable like you want to do it but your muscles won't move."

Dion shudders. "Sounds horrible. That's way worse than prison, why would you do that to people!" 

"Because if you don't do it to anyone, then babies who don't understand consequences yet will get annoyed about someone breathing too loudly and make them stop."

"...oh." 

He takes a second to digest that. "Some baby Jedi could probably do that. But they don't, because...because we're all raised in the temple with other Jedi and they teach us not to. That's why all Force-sensitive babies are supposed to be given to the temple, so they don't accidentally hurt people with their powers before they can control them." 

"How do you keep them from accidentally hurting people?"

"Well, babies aren't very good at using the Force, and in the Temple, they're surrounded by people who are better than them, so if they try to do anything bad an adult will stop them?" 

"...I guess with force magic you could maybe do that... I bet it takes a lot of adults to manage it, though."

"Not really? Maybe baby mages in your world are stronger than baby Jedi or something. Babies can't really do much with the Force." 

"What do you mean they can't do much?"

"Like, it takes focus and effort to use the Force, and babies are kinda dumb so they're not very good at either of those things? They can't just make something levitate by waving their hands and giggling at it."