Mal was about to answer Jo's question about flying, when the floodgates opened. She was suddenly angry, and he had the odd feeling that she was about to punch him. He raised his hands in what he hoped was a placating gesture, as he tried to come up with a response.

"Earth still exists, or no one would be livin' at all. There's just a.. a new version of it." This was going well. Mal rolled his eyes at himself. "It was about 50 years ago. If you're angry, take it up with the people who did it." He wasn't trying to be harsh, but he was trying to tell her that there wasn't much point in getting worked up about something that happened so long ago.

Still, he figured there wasn't a reason to be a jerk, so he added, "Sorry, guess that was the wrong thing to tellin' you."