"Millions of us. Feeding everyone was...complicated."

Pidge still isn't sure what to make of these people, and she's not totally trusting of them. They seem as curious about the world that came before them as Pidge is about the world that will come after her. Has come after her?

But they have no idea what ground they're treading on. OK, they do, it's a beach of the future. But they don't know what these people are like or anything about their culture. She can follow Miku's lead on this one.

"That's right. We need important information from him."