The implication of your assertion is pretty much a digital singularity. You’re implying that there will be no need for humans to interact with the digital world at all, because any work in the digital world will be achievable by AI.

Wonder what that means for meatspace.

Edit: Would also disagree this isn’t a physics problem. Pretty sure power required scales according to problem complexity. At a certain level of problem complexity we’re pretty much required to put enough carbon in the atmosphere to cook everyone to a crisp.

Edit 2: illustrative example, an Epic in Jira: “Design fusion reactor”