The article itself presents really interesting thoughts of course. While not really new, I feel spatial software is really not studied enough. Simply rearranging videos in only conferencing would make the experience so much more pleasant. I really dislike it if I need to rejoin jitsi for example (which sadly happens far to often) and suddenly everyone in the call has switched places.
I was a bit surprised not to see Jeff Raskin mentioned though when so many examples are ZUIs.
I am looking forward to check out Nototo. I have often thought of this kind of interface for a filesystem might be an interesting experiment.