The post I was responding to makes the distinction between things we can't create more of (land) and things we can (paintings). I used scarcity as an (erroneous) proxy for this distinction, even though obviously there are scarce things that we can create more of.

> Land is quite unique. It is the resource with the weakest argument that humans produce it.

I mean, not really. What about water or oxygen? What about carbon taxes insofar as they're related to the inherent value of the earth's climate? There are plenty of resources that don't require any human effort to produce, but that doesn't make them better suited to taxation. It just seems like an entirely arbitrary distinction to make.