"The desktop metaphor was invented because ... you had to manage your own storage" - Steve Jobs, 1996
The desktop metaphor was great because you had all your files and needed to be able to navigate and store them. Today with standards for different types of data this metaphor is becoming obsolete. Most things can and are stored on the web.
Stored in accounts, used and read by apps that handle those file types.
How much more intuitive will general computing be when people no longer need to handle the management and storage of files?