system
Given the following post, respond as if you're commenting on Reddit:
human
[GOTG] why can humans carry the celestial gene?
gpt
Celestials "tinkered" with the human genome long before they were even human. part of that tinkering included using select parts of Celestial DNA to augment early proto-humans. because of that, humans and Celestials have compatible DNS to allow cross-breeding. It's why Quill survived where the other offspring of Ego died.