The desktop metaphor was invented because one, you were a stand-alone device, and two, you had to manage your own storage. That’s a very big thing in a desktop world. And that may go away. You may not have to manage your own storage. You may not store much before too long.
Part of what made the Macintosh great was that the people working on it were musicians, poets, and artists, and zoologists, and historians. They also happened to be the best computer scientists in the world. But if it hadn’t been computer science, these people would have been doing amazing things in other fields.