I think the idea is that you wouldn’t need humans to do anything anymore, right? As impressive as it is, it’s still ultimately directed by human planning and coordination. Assuming they are aligned, you could have a collection of AGI that you let loose and they tirelessly solve all of humanity’s problems, do all of our work, and progress science and our understanding of the universe.
Those are all things that humanity is doing everyday. What we have is amazing, but it’s not that.
The infrastructure you just described is absolutely buildable today if you’re willing to burn tokens.