The entire idea of a user experience makes no sense to me. A user interface is unnoticeable and forgettable, because it's a utilitarian functionality.

A user experience can only be an experience if it's notable and memorable, and the only way for that to happen is for it to get in the way. On top of that, everyone will eventually adjust to it, so to stay notable and memorable, it has to constantly change, so it can always get in the way.

Worse yet, if a project included research to optimize usability, that constant change will mean it is always departing further and further from peak usability.

Don't mix up UX with UI.

The experience is not the interface, but how you accomplish what you set out to do. Unobtrusive UI that helps you get things done is what part of the experience should be.