Or they had floating islands that were landlocked by, I think, anchors. I forget what the term is. It's like a mesomanin or something like that. But it's the idea that they adopted so their economic system worked for them. Neolithic age, you have Egypt, you know, like Nile, Mesopotamia. Rivers are usually geography associated with the building of that first traditional economic system. Where people were growing food, they're self-sufficient, their community is their world around them.