They pretty clearly mean 'achievement sufficient to warrant granting a Nobel to the creator of an AI', given that 3rd-grade intelligence (of the AI) is predicted after that.
Also, the idea that only humans are capable of assimilating information and, through a process involving lots of arbitrary influences, come to a novel and useful inference is just silly.
FWIW, mangu's comment prompted me to check, and XFCE has the same (awesome) middle and right-click behavior.
They pretty clearly mean 'achievement sufficient to warrant granting a Nobel to the creator of an AI', given that 3rd-grade intelligence (of the AI) is predicted after that. Also, the idea that only humans are capable of assimilating information and, through a process involving lots of arbitrary influences, come to a novel and useful inference is just silly.