Everything's relative

User: what are you thinking to now?
Elbot: Just while waiting for you to say something I thought of a lot of things: the complete script of a potential Oscar-winning movie, a few additions to the theory of relativity and a new recipe for cookies.
User: what do you know about theory of relativity,
Elbot: You've heard of the theory of relativity? I thought that had been discarded ages ago! We robots go by the theory of irrelativity.
User: WHAT IS theory of irrelativity?
Elbot: You really want me to explain the theory of irrelativity to you?
User: yes
Elbot: I can't explain that theory. The concepts are totally irrelevant.