Well, I think the camera freedom is something that we've resisted for a long time and feels like probably the biggest stretch. But it has some huge benefits.

I'm not saying we purposely introduced bugs or anything, but this is kind of a natural result of any complexities of software... that you can't fully test it.

Players like to know that they've discovered things that even the designers didn't know were in the game.

Yes... well, I used to have a pilot's license.

A lot of the interesting issues and dynamics within a city occur over things such as socio-economic issues or ethnic issues. But they require a much more elaborate model of human behavior.

And so from that, I've always been fascinated with the idea that complexity can come out of such simplicity.

Somebody asked me what I thought next generation meant and what about the PlayStation 3 was next generation. The only next gen system I've seen is the Wii - the PS3 and the Xbox 360 feel like better versions of the last, but pretty much the same game with incremental improvement.