The infection? [She's not even sure how to answer the question. It's obvious, it's leveled the world.] Took over people's head, makes them look all bumpy eventually. Made most of the good stuff go away?

[Surely he knows. It's ravaged everything.]

You live here, right? You ever seen the other towns? They're all gone. Like, gone gone. [Ellie reaches out, lets the sides of her hands touch before moving them to opposite ends, simulating a flat ground.] Food's what you catch unless you live in the military places, and those place suck pretty hard too. There's no way in hell you can just go and buy ice cream. How'd you keep this place safe for so long?

[Another reason she needs to find Joel before it's not safe. After what's happened recently, he's probably worried about their separation.]