...it's better to say there's an idea I want to try. Though I think it's probably not going to work, but on the off chance... [Better to try and fail than to sit there and just assume there's no point trying. One is less damaging to the soul, you know?] And if what I think does work, it's not a solution either. It's just a start.

But those 'other options'... it's common sense, Sanji-kun. If a villager manages to find a way to get home, it's only going to be by finding whatever is used to bring us here. And we all come in individually and leave the same way, so... if that's the case, and we get hold of it, we can use it the same way.

[And if the Malnosso party line is true - that they don't know how the villagers arrive - then it's all moot anyway, because there isn't any way they can get home until random circumstance makes a person vanish. But she doesn't believe that anymore.]