system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why can’t we use steam generators for desalination?

Heat up seawater, use the steam to spin the generator, take the steam and condense it. Filter the remainder for usable salt.
gpt
Because how do you heat up the water? Burn a bunch of coal and stuff?

We know a better way to do it, which is to push the water through a special filter that salt molecules can't go through. Still takes loads of energy.