The number of (self-inflicted) existential threats facing Homo sapiens right now and all you come up with is "mass brain fog"?
AI won't solve human obstinacy, human entitlement, human greed, human short-sightedness, anthropocentric hubris, etc. I seriously doubt anything can, let alone a large language model.
These are not new problems. They are ancient and different people have dealt with them with different levels of success. AI has access to all those strategies.
So maybe one day AI dawns Mr. Rogers persona to solve one problem and Abe Lincoln to solve another.
It can do it at scales no individual or group can, so there is potential to nudge the entire chimp troupe in directions never possible before, in ways that "will serve to organize and measure the best of our energies and skills".
AI won't solve human obstinacy, human entitlement, human greed, human short-sightedness, anthropocentric hubris, etc. I seriously doubt anything can, let alone a large language model.