I think DOOM had just the right mix of elements that keep people coming back to it: great monsters, excellent weapons with great balance, a spooky environment and extreme speed.

The thought processes that go through my head when I'm playing a game compared to the thought processes in real life are very, very different. And they're more interesting to me than what you think about when you're doing the dishes, cleaning the yard, watching TV, driving or watching a movie.

What I didn't foresee in 2005 was the rise of the post-PC, which are all these tablets now. These are the things that actually will probably be the end of the consoles.

It may be a lot more personally rewarding to focus on the marvelous new equipment, but the focus should be on customers - attracting them, courting them, rewarding them, understanding them and binding them to you.

The analogy I use is that 'World of Warcraft' is like going to the mall: you see a ton of people there, but you don't really want to interact with them; you just want to know you're part of the human race. And if you get in trouble, you'll know someone else is there.

You might not think that programmers are artists, but programming is an extremely creative profession. Its logic-based creativity.

I'm creating the kind of games that I like right now. I'm not being held back by technology.