"Mm," he says, giving a small shake of his head for the rhetorical question. Seeing in water doesn't sound like a problem for himself, but dragons swam like they flew, and he could swim strongly in human form as well. Concepts of pressure shifts in deep waters aren't ones he can properly match, he who can fly high enough the air stops being credible for breathing, and cold would steal heat before it births itself in exertion.

He believes him, then, and takes what Tidus says without comment, because Tidus knows, where Jingyi does not. What he can comment on, with a softened snort, is simpler.

"The sun sets over the mountains for me. Even if I'm out on the coast, and I've never had the leisure to watch a sunset there. Sunrise would be over water. Haven't seen that either," he adds, where lakes and rivers aren't the same, and he's a mountain boy, born and raised, even when he'd lived in caves and encampments before it was safe to return to Gusu in his childhood. "But I know both over the mountains. It's beautiful, too... no one would have photographs of it. They don't exist in my world."

Not like this, the gloss page he's trailing a finger against, and it's unsettling in a way that has nothing to do with this world of oceanic diving, or Tidus's dream world or the world beyond it; it's the uncertainty that came with each asking after systems, with not knowing yet, with the we will try to get you access to knowing those numbers themselves.

He doesn't want to think on those things, far outside of his own hands.

"You can get pictures?"