"Well, it doesn't matter if it notices us - the ward doesn't stop anyone from doing that," Tidus explains. He might need to, since he does know that much! "They're just a really aggressive deterrent, like you don't want to come close to anyone behind it once you set it up. It was supposed to protect the Orange people working on those big box thingies from the last mission, see?"

To give Elidibus a better idea. But then he figures, waving a hand. "How about we call up Wangji, see what he says? He made them - then you can hear for yourself how they work! I bet they'd be cool to someone like you. You like this kind of stuff."

It's not said in a tired way at all. Just, hey Elidibus, you're a nerd about magic/energy-thingies!