Sorry I misunderstood. I agree Apple focuses on the general problem without trying to solve all the exceptions. Once they are comfortable with the working principles that start filling in the gaps.

It took me 3 days just to really feel I understood what the Vision Pro video demonstrated. I was very uncomfortable watching the initial video. The first feeling was voyeuritistic as if I was spying on the user. The second feeling was the horror of actual people using them in isolated squalid environments. Eventually I rationalized that the demonstration was really about hand/finger/eye tracking in space. The "spatial" interface was the most special thing they demoed. The rest of the demo was hardware power and the ergonomics.