That ability to move them and move factories just because housing's on the creep and property values are going up, that's going to have to be managed.

Yeah, there's definitely a couple of things here.

I mean, one which the industry has been quite sensitive to is reverse sensitivity, you know, which is where you might have established sort of an activity, a commercial or industrial activity, and then you start getting houses close by, and then those houses start complaining about your activity.

And that is a genuine problem, you know, and it's something that policy is grappling with with the new RM policy.

reforms that are being pushed through to sort of try and find a better balance between activities that have existed for a long time.

And do we really want to shut them down because people decided to build a house next door? That doesn't seem fair in a lot of cases.

I think the other one is around this tension between land uses, which does come up and I would say there that in theory, we don't really want to prevent land from being used for its highest and best use.

Are there cities or countries that have successfully integrated or that you believe from observation have successfully integrated transport planning, housing and the freight policy in the way that MSERT and say our Auckland deal are attempting to do and have a vision for doing? What can New Zealanders learn from things that have happened overseas? What does good look like? What does mistakes look like? You must have a breadth of knowledge in this area.

Or compare and contrast.

I think we've surprised ourselves by how successful the reforms have been.

So there's a general desire to keep doing what works, right? And that at a political level.

So that desire is fairly cross-party.

It varies, obviously.

They disagree on the emphasis on social housing and, you know, different policies.

But the desire to do more and to do better, I think, is fairly widely shared.

What made you want to kind of write this kind of Econ 101 for housing, this sort of exploration of fallacies?