Esteban's mind is, apparently, going places. Kept a memory - he's not sure what Esteban means by that, but he's not sure what he's thinking as he goes on, until he gets further into it. He's thinking out loud, Tidus realises, piecing something together on the spot. A lot of theorising about tethering that even Tidus doesn't fully understand, though he's been here longer than the other.

"I- don't know?" He sounds dubious, trying to gather his own thoughts about what Esteban's suggesting. "Is this even tethering? We're just moving people back to where they were." That had been the same case with Diagad. It was more like guiding - but at the same time, Tidus just has no idea. This is a lot of deep thinking.

"You should ask someone else. Maybe there's something in the info we got about tethering." Maybe? Tidus rubs the back of his neck, frown pulling to one side of his face.