My issue with this kind of reasoning is the comparison and reference to the human brain. The potential and reach of AI transcends the brain. We never had to master the "mystery" of how birds fly to invent aviation. It was never necessary to compare the number of turbine revolutions of early airplanes to the number of an eagle's feathers. Maybe birds were an inspiration or a metaphor, but thankfully aviation has not been limited to the means of propulsion of the beautiful yet humble pigeon. The potential of aviation has taken us into space exploration and massive international travel. I don't know where AI will take us, but I don't think it will be constrained by this temporary organ called 'human brain'.