[ Casey blinks, then catches up with the topic switch gratefully. They nod, clearly in thought. ]

Everyone has it. Every...thing has it, I guess. All of our advances and technology is powered by it, not electricity. Although, they're looking into that along with other sources, at least for kid toys.

[ Which is why the idea in the first place isn't completely foreign, but still a whole lot to take in at once with the rest. ]