The benign forms of superintelligence shaken out by non-benign forms.
>Another way to think about it is that if all of the jobs were replaced by AI, us leftover jobless humans would create a new economy just trying to grow food and make clothes and build houses and take care of our needs.
On whose land?
In any case, it will be cheaper to buy food from the AI. The remaining economy would just be the liquidation of remaining human-controlled assets into the AI-controlled economy for the stuff they need to survive like medicine and food.