Hubert Dreyfus? Stuart Dreyfus? Gary Marcus? Dave Akin? Ernest Davis? Aesop?
Question for Quote Investigator: Recent advances in artificial intelligence (AI) have been remarkable, but detractors contend that current approaches are inadequate and progress will soon reach a plateau.
Critics of AI research have used the following vivid analogy: You cannot reach the moon by climbing a tall tree or a ladder. This type of criticism has been attributed to the philosopher Hubert Dreyfus and the cognitive scientist Gary Marcus, but I do not know the precise phrasing, and I do not have a citation. Would you please help?
Reply from Quote Investigator: In 1965 Hubert Dreyfus published a sharply critical report titled “Alchemy and Artificial Intelligence” for the RAND Corporation, a prominent think tank. Dreyfus asserted that human-level intelligence required properties such as “fringe consciousness” and “ambiguity tolerance” which could not be implemented with digital computers.
Hence, Dreyfus insisted that AI researchers using digital computers would fail in their attempt to build systems displaying human-level intelligence. Dreyfus used two striking analogies to illustrate the pointlessness of these efforts. Boldface added to excepts by QI:1
An alchemist would surely have considered it rather pessimistic and petty to insist that, since the creation of quicksilver, he had produced many beautifully colored solutions but not a speck of gold; he would probably have considered such a critic extremely unfair. Similarly, the person who is hypnotized by the moon and is inching up those last branches toward the top of the tree would consider it reactionary of someone to shake the tree and yell, “Come down!”
Below are additional selected citations in chronological order.
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