Human beings love a good taxonomy. Categories, labels, and classifications make life easier for our brains.
Categories are good for many things, including finding things (a. la. the Dewey Decimal System, and the ‘top cutlery drawer further subcategorised with dividers separating knives, forks and spoons), and predicting how new things will behave (we expect a ball will roll down a hill, because its a ball and that’s what balls do).
The trouble is when we apply categories to humans. Attempting to predict the future behaviour of an individual based on the category we have assigned to them, will at best lead us to make errors, and at worst change how we behave towards them.
Tags are the opposite to categories. At least the way that I think about them.
I’m not talking about tags on social media, which are often categories.
For the sake of a simple example, think about a standard black and white football.
There are a few different categories we could apply her, the most obvious being “Sports equipment” and “ball”. But of course, these are only obvious to me, you might have different ones.
The point is that categories put the football into a larger container which we have set the entry criteria for.
Tags are different. They’re an internal property, not an external classification.
While categories describe a container we can put something in, tags describe something that is inherently present in the object.
For example, returning to our black and white football, we could tag it with “round”, “inflated”, “ball”, “leather”, “stitched” and perhaps a brand name or where it was made.
A football is a simple object, but it’s reasonably clear there’s a difference between the two approaches. Here’s a few reasons why I prefer to take a tag-based approach, and try to ditch categories as often as possible.
Tags tell us about the content, not the container.
Tags require us to look deeply, not assume we know what we’re looking at.
Tags help us to find connections, instead of applying stereotypes.
Thanks to Seth for this podcast on categories, and Christian for first highlighting the distinction between tags and categories to me on one of my current favourite websites.