Human brains are only so powerful. There are thoughts that literally cannot happen in a human brain due to size and speed limitations, and thus can never be tho

Human brains are only so powerful. There are thoughts that literally cannot happen in a human brain due to size and speed limitations, and thus can never be thought by humans. AIs would have a much higher information density, approaching the theoretical limits for our universe. This alone is enough to reconsider the argument you are making. While an AI wouldn't have the power to fundamentally change the universe or defy computational complexity -- what they could do would be near enough to godlike in comparison to humans that such a fact barely matters.