In a game, you know, we don't fully understand how there's this difference between playing the game and playing with the game. And it's very interesting when players play with the game while they're playing the game, 'cause you're kind of doing them simultaneously. They're kind of inter-tangled and nested. And I think that's where- it's also something that human beings are very, very good at is like, is pushing out the edges of the rules and trying to get the rules to wrap around themselves and to do strange things, because we are playful creatures. So I think it's very exciting when players find interesting ways to play with the game and manipulate the game and blur the line between is he playing the game or is he playing with the edges of the game. Is she doing things that are allowed or not allowed. And because the rules of a game are just a‚Äîthe rules within the game are- are formalized, in a computer game they can't be broken unless there's a bug. But the rules for playing with the game are informal and they're part of the contract we have with the player, those rules are allowed to be broken. So it's a very interesting interplay and I think it's very, very beautiful.