GREG O'CONNOR (Labour—Ōhāriu): I believe it was Albert Einstein who said that the hardest thing in the world to understand is the income tax, and what we've heard tonight—and I congratulate the member for having his bill drawn. Certainly, when one looks at some of the relatively minor issues that are in bills in the term, I think this is one that has some substance. It does have some substance. It's got enough substance that, were we to pass it here tonight, were we to pass it at any stage, it would have a considerable impact on the way we do business as a country. Therefore, there is no way we should be debating it in isolation without a full understanding of the impact it will have down the track, because, as we all know, good policy is about ensuring we understand the unintended consequences, and there will be considerable unintended consequences were this piece of legislation—this significant piece of legislation—to go through without full consideration of what difference it would make right across the board.