And all AI needs to accomplish this is 3 things
1: Be easy enough to use that the super majority of the population can use it as easily as they scroll through tiktok
2: Be correct more often than not
3: Widespread adoption
It doesn't need autonomy because the human brain can take that role and live through its avatar. The human brain can handle a certain level of "glitches in the matrix" and still keep whatever reality they are experiencing at that moment in tact.
This brings us to the surveillance state and police state and the technologies that become capable punishments in this world are as horrific as you can imagine. If your altered realities can give you pleasure and perfection it can also give pain and disorder and all one needs to do is restrain the human body and in this world of illusion the mind and what is perceived is reality is malleable to whatever horrific prison torture chamber they can dream up.
I imagine that the "Trans humanists" expect that somewhere around this point is when the line between the digital and the ghost begins to blur and their super AI god or whatever the fuck it is they wish to build is complete and they believe that at this point they can "transcend" and become something new, better than.
I personally hold the belief that this super being on earth construct will never materialize and instead humanity will be stuck in a perfect loop of perfection that leads to stagnation that leads to extinction of our species.
https://youtu.be/zbd5p5LCGBY