> Researchers in the 1960s and the 1970s were convinced that their methods would eventually succeed in creating a machine with general intelligence and consider

> Researchers in the 1960s and the 1970s were convinced that their methods would eventually succeed in creating a machine with general intelligence and considered this the goal of their field.[269] Herbert Simon predicted, "machines will be capable, within twenty years, of doing any work a man can do".[270] Marvin Minsky agreed, writing, "within a generation ... the problem of creating 'artificial intelligence' will substantially be solved".[271] They had, however, underestimated the difficulty of the problem.