Hon DAVID PARKER: Well, we could have prescribed it, but it will differ. In some areas, they've got bigger challenges than others and they might take a little longer. But I think most people think of a generation as 20 or 30 years. From my perspective, the most important thing is to get things on the right trajectory, and then I think we'll be able to relax a little bit and take the time to get back to the state of rivers that we used to enjoy as a country 20 or 30 years ago.