But the cost in the more general sense is that if we use the land for forestry, then by definition we cannot use it for other things, which are precluded by the planting of trees. Farming, in the more traditional sense, is of course one of those. In all of this, it's important that we understand that if one-off decisions that are made, such as Greg O'Connor had the grace to acknowledge he'd made some bad decisions in his past—I mean we know that because he's obviously a member of the Labour Party—but also in relation to our forestry investment. And I think he would acknowledge I'm using the term reasonably loosely; by his own telling of the anecdote it was an experiment into which relatively little thought was put, whereby they would sort of whack in a few trees and sort of see what became of it, was a growing problem. Anyway, so the afforestation can take place, and historically I think has taken place, in a reasonably haphazard way—it's been more of a natural process. Obviously, growing a forest is natural to some extent anyway, with photosynthesis and so forth—I'm just really digging into my fourth form science here, Mr Speaker, as you can tell we're getting close to the end of my 10-minute contribution, thankfully.