Tagging works on a heap. Heirarchies are terribly inefficient for categorising information. The metadata is more important than the file location. Look at the way music is stored on smartphones.
> The metadata is more important than the file location.
The web is a great example of a system where there's no particular need to store things like you do in a filesystem. The data for most sites is stored in various SQL and NOSQL databases... yet we still predominately see hierarchical paths used for resource identification. I wonder why?
But you're the one claiming an absolute with your original futurist prediction. Finding a counterexample doesn't detract from my argument that the filesystem API and its notion of hierarchical resource identification and management is extremely useful regardless of the storage.
Ie, current operating systems won't die and filesystem or filesystem-like APIs won't be going anywhere for a long long time.
Ever heard of STM?