What a positively morbid spin on optimism. Ciri's eyebrows raise, and she seems to consider this. Then, she simply shrugs.

"That's certainly one way to learn how to appreciate your surroundings. Fair enough."

She doesn't provide her own thoughts on this, though by her lack of any sort of horrified reaction, it's probably clear enough she knows what he's talking about. Fields full of bodies are something she's seen before enough to take his appreciation of empty ones seriously. Whatever gets him through the day.