Alan Turing — "The computer is a tool that can be used to extend the human mind."
The computer is a tool that can be used to extend the human mind.
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More from Alan Turing
"The machine should be able to make mistakes."
"The problem of intelligence is a very difficult one."
"Instead of trying to produce a programme to simulate the adult mind, why not rather try to produce one which simulates the child's?"
"I am not interested in whether a machine can think, but in whether it can make me think."
"The machine should be able to use language."
Details
Attributed, general implication from his writings, but exact quote is elusive.
Date: Approx. 1950s
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Understanding this quote
What it means
Machines don't replace human thinking — they multiply it. This argues that computers are instruments, like telescopes or microscopes, that let minds reach further than they could alone. Rather than framing computation as a threat or substitute for human intelligence, it positions technology as a cognitive amplifier: something that takes human intent and extends its reach, speed, and scope into problems otherwise too large or complex for unaided minds to solve.
Relevance to Alan Turing
Turing spent his career proving exactly this. His 1936 theoretical Turing machine formalized computation as mechanized logical reasoning. At Bletchley Park, his Bombe machine extended Allied codebreakers' mental capacity, cracking Enigma traffic that would have taken humans lifetimes unaided. His 1950 paper on machine intelligence wasn't about replacing minds but exploring what machines could do alongside them — computation as partnership, not replacement, was his consistent philosophical position.
The era
In the 1940s and 50s, early computers like Colossus and ENIAC were built specifically to augment human calculation — cracking codes, computing ballistics tables, solving equations that stumped rooms of human 'computers.' Simultaneously, Cold War anxieties and science fiction cast machines as existential threats. Framing the computer as a tool rather than a rival was a deliberate philosophical stance against widespread cultural fear of automation displacing human purpose entirely.
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