First of all, I'd like to say that Her was a terrific movie!
But given the scene when the OS was asking about Theodore's relationship with his mother (as can be seen here), I'd like to know what was going on in the screenwriter's head, i.e. what was the hidden meaning behind this scene?
(I should add that I have an answer, and it's a doozie! It came to me in a dream. But I'd like to know what other people think about this scene.)