So her world's dragons have to shout to breathe fire, rather than simply breathe it. That's something he's not heard of before and it's intriguing. Thedas' dragons, the older ones, the old gods, had to be able to talk if once they'd tricked Tevinter. Now they sing, but what could they do before? Could regular dragons, given enough time and exposure to language, learn? They're not stupid animals, he knows that much.

"I think I do. We've dragons that can breathe lightning and fire and ice, but in your world they have to cast spells to do it, and cast them with specific words." It's a rewording of what she's said to make sure he's grasped it. "And that's the magic of your world, the words? Some have it inborn, and some can learn."