I am starting to think the top half of the screen should be the desktop, the bottom half should be the start menu but already activated and full of programs. No conventional bottom panel-bar with a start button. A right-most column should exist that fills up with a list of opened windows. [1]

When I first saw Win95 with a cleared desktop, I immediately thought - where has everything gone? Why is this empty? Decades later I still think it's cumbersome to have to look and press at bottom left to see all the programs every time.

[1] proportions and locations can be set

Also, a "sweep" button that quickly clears the desktop into a "desktop archive." I do that manually anyway with my own "sweep" folders. Every few months I delete and categorize within the sweep folder. Keeping the desktop clean and organized is the new frontier, especially as screens become smaller and people don't want to lose flow.

Verbose response, but what are your thoughts? Maybe use voice recognition that uses lip-reading through a camera to launch or modify?

Mice and keyboards are just so passe, right, but I wouldn't go so far as getting a brain chip? Maybe a spherical "touchball" that senses the pressure of each finger to move a cursor? Trackballs are too laborsome. I have my mouse on maximum sensitivity and acceleration anyway.