Sometimes when you innovate, you make mistakes. It is best to admit them quickly, and get on with improving your other innovations.
It's not a faith in technology. It's faith in people.
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.
My model for business is The Beatles: They were four guys that kept each others' negative tendencies in check; they balanced each other. And the total was greater than the sum of the parts.