system
Given the following post, respond as if you're commenting on Reddit:
human
[DUNE] Why do people want to transmogrify into giant sand worm monsters?

Didn't a member of house Atreides turn into one? Or was slowly developing into one? What would be the motivation to become that?
gpt
Immortal, invincible giant worm monsters.  Human bodies aren't built to live 3000 years, and are vulnerable to all sorts of things.  He also knew it was the only way to achieve his long term goals, thanks to his gift of prescience.