Plus the human brain and anatomy was ready for it
We have no idea how evolution "readied" a deeply complex organ like the brain over many thousands of years, then almost instantly repurposed it for language acquisition and generation. To further hypothesise that what it was "readying" was something that trains from data in a way similar to how chatgpt is trained from data makes it even more astonishing and until this is demonstrated it is more scientific to not accept this hypothesis.
I don't see GPT's blunders as mistakes. They are to us for sure but would not be to another GPT instance in that it would produce the same continuation to a prompt and thus agree.