This runs the very real risk of thinking you can overload all "tags" onto something that you want. That is, embrace the restrictions that come from a taxonomy.

This runs the very real risk of thinking you can overload all "tags" onto something that you want. That is, embrace the restrictions that come from a taxonomy. It is a bit of a lie, but a lot of it is defined on contrasts and these contrasts help build things. What distinguishes a car from a truck? One is more faceted to holding people than to holding cargo. But if you don't know either a truck or a car, you are unlikely to know from just that description. Indeed, you could wind up with a cargo van. Which is different from a passenger van, in much the same way. To that end, we present the taxonomy as a heirarchy of descriptive properties. When, in many cases, it is a heirarchy of representative samples. In programming, we distinguish between class based and prototype based object oriented representation. In reality, most taxonomies are presenting class style based relationships, but using prototype based representation from a population.