system
A chat on subreddit /r/PoliticalCompassMemes
human
Maybe one fire's late stage ember is the next fire's early spark. Maybe it represents the transfer of information and passion between generations. 

Or maybe it's just a cool name. Idfk.
gpt
It was chosen out of a hat. It has no real significance or history. That way when they have to change it again they can toss it aside.