I never really think of something in terms of what not to do. It's always what's appealing or what's cool.

'District 9' was a singular anti-Apartheid metaphor, and 'Elysium' is a more general metaphor about immigration and how the First World and Third World meet. But the thing that I like the most about the metaphor is that it can be scaled to suit almost any scenario.

You have weak artificial intelligence, which is a robot or a computer system that follows a list of protocols and it's like yes/no answers that can be as complex as you want, and then you have strong A.I., which is basically like a human, like something that can think up a thought that's never been thought up or paint a painting or write a poem.

I was touching on the idea of the autonomous militaristic or autonomous law enforcement idea, but it wasn't the primary driving force.

This whole notion that the robot has to declare nuclear war is one part of the discussion, but it may not be reality. Reality is, maybe it can empathize to a far greater degree than we can and experience a way wider range of emotions. So, why not have a robot that can do that?

'District 9', 'Elysium' and 'Chappie' were all born out of some visual concept first. 'Chappie' is the imagery, because I think I'm a visual person first, of this ridiculous robot character. It's much more comedy based and in an unusual setting.

I think a lot of the inspirations for me are very instinctual and subconscious. I don't over intellectualize stuff much. It's a very instinctual thing.