system
Given the following post, respond as if you're commenting on Reddit:
human
[Blade Runner] Why is Tyrell still on Earth?

Is there an in-universe rationale for Tyrell to remain on Earth?  JF Sebastian explains how he was denied authorization to go off world because of a genetic disorder, but that wouldn't make sense for Tyrell even theoretically.  He owns the terraforming technologies.  No one would/could tell him no.  So he has to stay on Earth by choice then, right?  Why do you think that is?
gpt
Tyrell was a chess player, a man who quoted classics and utilized biblical analogies to the bible. Try as he might, he was someone who was tethered to the our planets art, history, and writing.  

"The life that burns twice as bright burns half as long. And you have burnt so very very brightly, Roy. Look at you! You're the prodigal son. You're quite a prize."