classify

Note that this is a breaking API change in the libraries (more information in the README.md). It does not affect the backwards compatibility of the protocol itself.

In Material Design, the selected and activated states apply in different, mutually-exclusive situations:

Events AAA and BBB are mutually exclusive (cannot both occur at once) if they have no elements in common.

Comedian Henny Youngman was famous for one-liners delivered in a deadpan manner. Much of his humor was both wry and dry.

Mutually exclusive categories can be beneficial. If categories appear several places, it's called cross-listing or polyhierarchical. The hierarchy will lose its value if cross-listing appears too often. Cross-listing often appears when working with ambiguous categories that fits more than one place.

I get asked a lot which I want to do more; design or write code? I answer, “yes.”

Being a better designer makes me a better engineer and being a better engineer makes me a better designer.

Huh, to be honest, I'd expect assigning multiple elements to the same slot to fail at compile time unless the multiples were inside mutually exclusive conditionals. If the multiples were outside statically resolvable mutually exclusive conditionals I'd expect to see a runtime error.

Do you consider visitor interaction with the home page video an important engagement signal? If so, you would want interaction with the video to be included in the bounce rate calculation, so that sessions including only your home page with clicks on the video are not calculated as bounces. On the other hand, you might prefer a more strict calculation of bounce rate for your home page, in which you want to know the percentage of sessions including only your home page regardless of clicks on the video.

I have concluded that all these systems are cumbersome and onerous in some ways, more concerned with design than functionality, and more concerned with ease-of-use than speed and efficiency.