We can only wonder my friend. Similarly how we can wonder how "a world where all air is replaced by water and humans no longer need to breathe" would look like.

We can only wonder my friend. Similarly how we can wonder how "a world where all air is replaced by water and humans no longer need to breathe" would look like. There already are solutions to run non-linux software there, AI would probably just tell you how to use it. Windows 7 already had dark mode, all you had to do was to switch to the pre-aero theme and set your color palette to a dark one. Getting an idea is the easiest part - if you get an idea and wonder why nobody has done it before it's most likely because they have and you just don't know much about it.