The ease with which Bruce transitioned from snarky remarks to conversational should probably be worrying, but since Superman had made a very similar transition he wasn't too fussed.

"We need to think about planting food. Livestock won't work but we should be able to arrange some sort of sustainable project. Scavenging isn't a long term solution." But crops weren't a short term one. "Something has to fuel you. If it isn't food, what is it?"