REMEMBER GUYS
When Caine’s alone in his office with Bubble, Bubble doesn’t start off insulting Caine. He’s actually supportive of him. It’s only when Caine begins to think that the humans hate him that Bubble starts verbalizing all of Caine’s inner fears and insecurities.
I guess it could make sense that Bubble was the original Able, but I sincerely think that the blue “Able” AI is dead (it would line up with the Bible story n’ what-not) and that Bubble is just a subroutine for Caine’s AI, where it verbalizes his inner thoughts and concerns or gives him new ideas (see “you should die- you should throw a fucking beach party!).
Actually that part makes the stargazing bit from Untitled funnier because Caine asks “Why do you swear now?!” As if he wasn’t the one responsible for the swear filter and also is capable of swearing and Bubble is a subroutine.