system
Given the following post, respond as if you're commenting on Reddit:
human
[Dune] Why don't the Fremen import water from off-world?

Paul comes from a planet covered in vast oceans. It seems odd to me that such a planet can co-exist in the same economy as a brutally dry desert planet. Maybe creating sustained bodies of water on Arrakis is a few thousand years away, but certainly they could import enough to satisfy their needs, right?

Is there a reason this doesn't seem to happen?
gpt
Other then the reasons already mentioned, the Fremen don't control Arrakis and are not economically powerful enough to import water for themselves. The Imperial house that controls the planet do import water for their consumption, and provide (or sell) the water to the Fremen that live in the city (cities?) that they control.