 Critics of the logical approach noted , as Dreyfus had , that human beings rarely used logic when they solved problems . Experiments by <unk> like Peter <unk> , Eleanor <unk> , Amos <unk> , Daniel <unk> and others provided proof . McCarthy responded that what people do is irrelevant . He argued that what is really needed are machines that can solve problems — not machines that think as people do . 
